In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

[EX Q]: Who ruled Bithynia before Bas?, Context: The Bithynians were a Thracian people living in northwest Anatolia. After Alexander's conquests the region of Bithynia came under the rule of the native king Bas, who defeated Calas, a general of Alexander the Great, and maintained the independence of Bithynia. His son, Zipoetes I of Bithynia maintained this autonomy against Lysimachus and Seleucus I, and assumed the title of king (basileus) in 297 BCE. His son and successor, Nicomedes I, founded Nicomedia, which soon rose to great prosperity, and during his long reign (c. 278 c. 255 BCE), as well as those of his successors, the kingdom of Bithynia held a considerable place among the minor monarchies of Anatolia. Nicomedes also invited the Celtic Galatians into Anatolia as mercenaries, and they later turned on his son Prusias I, who defeated them in battle. Their last king, Nicomedes IV, was unable to maintain himself against Mithridates VI of Pontus, and, after being restored to his throne by the Roman Senate, he bequeathed his kingdom by will to the Roman republic (74 BCE).
[EX A]: Calas

[EX Q]: What does she do outside of show business?, Context: Madonna Louise Ciccone (/tkoni/; Italian: [tikkone]; born August 16, 1958) is an American singer, songwriter, actress, and businesswoman. She achieved popularity by pushing the boundaries of lyrical content in mainstream popular music and imagery in her music videos, which became a fixture on MTV. Madonna is known for reinventing both her music and image, and for maintaining her autonomy within the recording industry. Music critics have acclaimed her musical productions, which have generated some controversy. Often referred to as the "Queen of Pop", she is often cited as an influence by other artists.
[EX A]: businesswoman

[EX Q]: This gender dominated the make-up of the Swiss population in 2008?, Context: As of 2008[update], the population was 47.5% male and 52.5% female. The population was made up of 44,032 Swiss men (35.4% of the population) and 15,092 (12.1%) non-Swiss men. There were 51,531 Swiss women (41.4%) and 13,726 (11.0%) non-Swiss women. Of the population in the municipality, 39,008 or about 30.3% were born in Bern and lived there in 2000. There were 27,573 or 21.4% who were born in the same canton, while 25,818 or 20.1% were born somewhere else in Switzerland, and 27,812 or 21.6% were born outside of Switzerland.
[EX A]:
female