Answer the following question: Information:  - A four-star rank is the rank of any four-star officer described by the NATO OF-9 code. Four-star officers are often the most senior commanders in the armed services, having ranks such as (full) admiral, (full) general, or air chief marshal. This designation is also used by some armed forces that are not North Atlantic Treaty Organisation (NATO) members.  - Air vice-marshal (abbreviated as AVM) is a two-star air officer rank which originated in and continues to be used by the Royal Air Force. The rank is also used by the air forces of many countries which have historical British influence and it is sometimes used as the English translation of an equivalent rank in countries which have a non-English air force-specific rank structure. Air vice-marshals may be addressed generically as "air marshal". Air vice-marshal is a two-star rank and has a NATO ranking code of OF-7. It is equivalent to a rear-admiral in the Royal Navy or a major-general in the British Army or the Royal Marines. In other NATO forces, such as the United States Armed Forces and the Canadian Armed Forces, the equivalent two-star rank is major general.  - A flag officer is a commissioned officer in a nation's armed forces senior enough to be entitled to fly a flag to mark the position from which the officer exercises command.  - The North Atlantic Treaty Organization (NATO  '), also called the North Atlantic Alliance, is an intergovernmental military alliance based on the North Atlantic Treaty which was signed on 4 April 1949. The organization constitutes a system of collective defence whereby its member states agree to mutual defence in response to an attack by any external party. Three NATO members are permanent members of the United Nations Security Council with the power to veto and are officially nuclear-weapon states: the United States, France and the United Kingdom. NATO's headquarters are located in Haren, Brussels, Belgium, where the Supreme Allied Commander also resides. Belgium is one of the 28 member states across North America and Europe, the newest of which, Albania and Croatia, joined in April 2009. An additional 22 countries participate in NATO's Partnership for Peace program, with 15 other countries involved in institutionalized dialogue programmes. The combined military spending of all NATO members constitutes over 70% of the global total. Members' defence spending is supposed to amount to 2% of GDP.  - An officer of three-star rank is a very senior commander in many of the armed services holding a rank described by the NATO code of OF-8. The term is also used by some armed forces which are not NATO members. Typically, three-star officers hold the rank of vice admiral, lieutenant general, or in the case of those air forces with a separate rank structure, air marshal.  - Vice admiral is a senior naval flag officer rank, equivalent to lieutenant general and air marshal. A vice admiral is typically senior to a rear admiral and junior to an admiral. In many navies, vice admiral is a three-star rank with a NATO code of OF-8, although in some navies like the French Navy it is an OF-7 rank, the OF-8 code corresponding to the four-star rank of squadron vice-admiral.  - Counter admiral is a rank found in many navies of the world, but no longer used in English-speaking countries, where the equivalent rank is rear admiral. The term derives from the French "contre-amiral".  - The French Navy ("national navy"), informally , is the maritime arm of the French Armed Forces. Tracing its roots back to 1624 it is one of the world's oldest naval forces and historically played a key part in establishing the French colonial empire. Since the early foundings, its roles have been defined as maintaining intelligence, protecting populations, preventing crises, intervening wherever necessary to reestablish peace, and dissuading any threats against vital French interests. The Marine nationale consists of four branches: the "Force d'Action Navale", the "Forces Sous-marines", the "Aéronavale" and the "Fusiliers Marins" (including Commandos Marine). As a blue-water navy the Marine nationale operates a wide range of fighting vessels, including a nuclear-powered aircraft carrier, nuclear-powered submarines, frigates, patrol boats and support ships. The French Navy does not use prefixes of the names of its ships (such as the Royal Navy uses HMS, for instance). Foreign commentators sometimes use the prefixes "FS" (for "French Ship") or FNS (for "French Navy Ship"); these are not official, however.  - An officer of two-star rank is a senior commander in many of the armed services holding a rank described by the NATO code of OF-7. The term is also used by some armed forces which are not NATO members. Typically, two-star officers hold the rank of rear admiral, counter admiral, major general, or in the case of those air forces with a separate rank structure, air vice-marshal.  - Lieutenant general, lieutenant-general and similar (abbrev Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second in command on the battlefield, who was normally subordinate to a captain general.  - Rear admiral is a naval commissioned officer rank above that of a commodore and captain , and below that of a vice admiral . It is generally regarded as the lowest of the `` admiral '' ranks , which are also sometimes referred to as `` flag officers '' or `` flag ranks '' . In many navies it is referred to as a two - star rank ( OF - 7 ) . It originated from the days of naval sailing squadrons and can trace its origins to the Royal Navy . Each naval squadron would be assigned an admiral as its head , who would command from the centre vessel and direct the activities of the squadron . The admiral would in turn be assisted by a vice admiral , who commanded the lead ships which would bear the brunt of a naval battle . In the rear of the naval squadron , a third admiral would command the remaining ships and , as this section of the squadron was considered to be in the least danger , the admiral in command of the rear would typically be the most junior of the squadron admirals . This has survived into the modern age , with the rank of rear admiral the most - junior of the admiralty ranks of many navies . In some European navies ( e.g. , that of France ) , and in the Canadian Forces ' French rank translations , the rank of rear admiral is known as contre - amiral . In the German Navy the rank is known as Konteradmiral , superior to the flotilla admiral ( Commodore in other navies ) . In the Royal Netherlands Navy , this rank is known as schout - bij - nacht ( lit. : supervisor during night ) , denoting the role junior to the squadron admiral , and fleet admiral .  - Air marshal (Air Mshl or AM) is a three-star air-officer rank which originated in and continues to be used by the Royal Air Force. The rank is also used by the air forces of many countries which have historical British influence and it is sometimes used as the English translation of an equivalent rank in countries which have a non-English air force-specific rank structure. Air marshal is a three-star rank and has a NATO ranking code of OF-8, equivalent to a vice-admiral in the Royal Navy or a lieutenant-general in the British Army or the Royal Marines. In other NATO forces, such as the United States Armed Forces and the Canadian Armed Forces, the equivalent three-star rank is lieutenant general.    Given the information above, choose from the list below the object entity that exhibits the relation 'said to be the same as' with the subject 'rear admiral'.  Choices: - counter admiral  - europe  - france  - general  - instance  - lieutenant general  - major general  - mark  - rear admiral  - title  - vice admiral
Answer:
counter admiral