Information:  - Dirk Serries (born 1968) is a Belgian composer and ambient musician. He is best known as Vidna Obmana, a pseudonym he used from 1984 until 2007.  - Vidna Obmana ( stylized vidnaObmana on many album covers ) is a pseudonym used by Belgian composer and ambient musician Dirk Serries . The name Vidna Obmana , a phrase in Croatian , literally translates to `` optical illusion '' and was chosen by Serries because he felt it accurately described the music . Serries created music under the Vidna Obmana pseudonym from 1984 until 2007 , when he official retired the name . Most of his current work is released under the Fear Falls Burning pseudonym . Vidna Obmana 's music has often been described as anamorphic and organic . He uses the techniques of looping and shaping harmonies , minimizing the configurations to a few notes . Vidna Obmana has collaborated on several occasions with artists such as Asmus Tietchens , Brannan Lane , Capriolo Trifoglio , Diego Borotti , and Steve Roach . Some of these collaborations have become entire projects of their own , such as Continuum ( collaboration with Bass Communion ) and Principle of Silence ( collaboration with Joris De Backer ) . Vidna Obmana is often cited as one of the more notable dark ambient musicians .  - A pseudonym (and ) or alias is a name that a person or group assumes for a particular purpose, which can differ from their original or true name (orthonym). Pseudonyms include stage names and user names (both called "screen names"), ring names, pen names, nicknames, aliases, superhero identities and code names, gamer identifications, and regnal names of emperors, popes, and other monarchs. Historically, they have often taken the form of anagrams, Graecisms, and Latinisations, although there are many other methods of choosing a pseudonym.  - A regnal name, or reign name, is a name used by some monarchs and popes during their reigns, and used subsequently to refer to them. The term is simply the adjective "regnal", of or relating to a reign, monarch, or kingdom, modifying "name". Since ancient times, monarchs have frequently, but not always, chosen to use a different name from their original name when they accede to the monarchy. The regnal name is usually followed by a regnal number (ordinal), usually written as a Roman numeral (VI rather than 6), to provide a unique identification for that monarch among other monarchs of that realm. In some cases, the monarch has more than one regnal name, but the regnal number is based on only one of those names, for example Charles X Gustav of Sweden, George Tupou V of Tonga. If a monarch reigns in more than one realm, he or she may carry different ordinals in each one, as they are each assigned chronologically, and some realms may have had different numbers of rulers of the same regnal name previously. For example, the same person was both King James I of England (along with Ireland) and King James VI of Scotland.  - The pope (from "pappas", a child's word for "father") is the Bishop of Rome and, therefore, the leader of the worldwide Catholic Church. The primacy of the Roman bishop is largely derived from his role as the traditional successor to Saint Peter, to whom Jesus is supposed to have given the keys of Heaven and the powers of "binding and loosing", naming him as the "rock" upon which the church would be built. The current pope is Francis, who was elected on 13 March 2013, succeeding Benedict XVI.    Given the information above, choose from the list below the object entity that exhibits the relation 'date of birth' with the subject 'vidna obmana'.  Choices: - 1968  - 1984  - 2013  - 6
1968

(Q).
Information:  - Powys Fadog was the northern portion of the former princely realm of Powys, which split in two following the death of Madog ap Maredudd in 1160. The realm was divided under Welsh law, with Madog's nephew Owain Cyfeiliog inheriting the south (see Powys Wenwynwyn) and his son Gruffydd Maelor I, who inherited the north.  - Wales is a country that is part of the United Kingdom and the island of Great Britain. It is bordered by England to the east, the Irish Sea to the north and west, and the Bristol Channel to the south. It had a population in 2011 of 3,063,456 and has a total area of . Wales has over of coastline and is largely mountainous, with its higher peaks in the north and central areas, including Snowdon, its highest summit. The country lies within the north temperate zone and has a changeable, maritime climate.  - Madog ap Maredudd (died 1160) was the last Prince of the entire Kingdom of Powys, Wales and for a time held the Fitzalan Lordship of Oswestry.  - Owain ap Gruffydd (c. 11301197) was a prince of the southern part of Powys and a poet. He is usually known as Owain Cyfeiliog to distinguish him from other rulers named Owain, particularly his contemporary, Owain ap Gruffydd of Gwynedd, who is known as Owain Gwynedd.  - The Irish Sea (, , , Ulster-Scots: "Airish Sea"), separates the islands of Ireland and Great Britain. It is connected to the Celtic Sea in the south by St George's Channel, and to the Inner Seas off the West Coast of Scotland in the north by the North Channel. Anglesey is the largest island within the Irish Sea, followed by the Isle of Man. The sea is occasionally, but rarely, referred to as the Manx Sea.  - Madog ap Gruffudd or Madog ap Gruffudd Maelor , was Prince of Powys Fadog 1191 - 1236 in north - east Wales .  - Welsh law is the primary and secondary legislation generated by the National Assembly for Wales, according to devolved authority granted in the Government of Wales Act 2006. Each piece of Welsh legislation is known as an Act of the Assembly. The first Assembly legislation to be officially proposed was called the NHS Redress (Wales) Measure 2008. These powers have been effective since May 2007. It is the first time in almost 500 years that Wales has had its own laws, since "Cyfraith Hywel", a version of Celtic law, was abolished and replaced by English law through the Laws in Wales Acts, passed between 1535 and 1542 by King Henry VIII.  - Powys Wenwynwyn or Powys Cyfeiliog was a Welsh kingdom which existed during the high middle ages. The realm was the southern portion of the former princely state of Powys which split following the death of Madog ap Maredudd of Powys in 1160: the northern portion (Maelor) went to Gruffydd Maelor and eventually became known as Powys Fadog; while the southern portion (Cyfeiliog) going to Owain Cyfeiliog and becoming known, eventually, as Powys Wenwynwyn after Prince Gwenwynwyn ab Owain, its second ruler.    Given the information above, choose from the list below the object entity that exhibits the relation 'father' with the subject 'madog ap gruffydd maelor'.  Choices: - george  - gruffydd maelor i  - henry viii  - madog ap maredudd  - owain gwynedd
(A).
gruffydd maelor i