Answer the following question: Information:  - Virginia (, officially the Commonwealth of Virginia) is a state located in the Mid-Atlantic region of the United States, as well as in the historic Southeast. Virginia is nicknamed the "Old Dominion" due to its status as the first colonial possession established in mainland British America, and "Mother of Presidents" because eight U.S. presidents were born there, more than any other state. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most populous city, and Fairfax County is the most populous political subdivision. The Commonwealth's estimated population is over 8.3 million, which is slightly less than New York City.  - A.P. Warrior ( foaled February 24 , 2003 in Kentucky ) is a thoroughbred race horse who was a Kentucky Derby contender in 2006 and Grade II winner on both dirt and turf . A son of A.P. Indy and Warrior Queen , he was owned and raced by Stanley E. Fulton , owner of Sunland Park Racetrack . Initially trained by Eoin Harty , John Shirreffs conditioned the horse for his last seven starts . In 2007 , A.P. Warrior was retired and sold to Stonewall Farm in Versailles , Kentucky where he stands for $ 15,000 .  - Kentucky, officially the Commonwealth of Kentucky, is a state located in the east south-central region of the United States. Kentucky is one of four U.S. states constituted as a commonwealth (the others being Virginia, Pennsylvania, and Massachusetts). Originally a part of Virginia, in 1792 Kentucky became the 15th state to join the Union. Kentucky is the 37th most extensive and the 26th most populous of the 50 United States.    Given the information above, choose from the list below the object entity that exhibits the relation 'color' with the subject 'a.p. warrior'.  Choices: - bay  - blue
Answer:
bay