TASK DEFINITION: Classify the relation of question with context to one of these categories: 1) award received, 2) based on, collection, 3) conflict, 4) constellation, 5) convicted of, 6) date of death, 7) director, 8) drafted by, 9) educated at, 10) medical condition, 11) military branch, 12) narrative location, 13) occupation, 14) original network, 15) parent company, 16) point in time, 17) production company, 18) residence, 19) series, 20) service entry, 21) sex or gender, 22) spouse, 23) standards body question.
PROBLEM: Context : Nabisco opened corporate offices as the National Biscuit Company in the world's first skyscraper, the Home Insurance Building in the Chicago Loop in 1898. 
Question : What is Nabisco's parent company?

SOLUTION: parent company

PROBLEM: Context : American astronomer Adriaan van Maanen, Van Maanen 2 was the third white dwarf identified, after 40 Eridani B and Sirius B, and the first that was not a member of a multi-star system. 
Question : What constellation is where Van Maanen 2 is?

SOLUTION: constellation

PROBLEM: Context : Kim Richards and Ike Eisenmann, who portrayed Tia and Tony in the original Witch Mountain films of the 1970s, made cameo appearances in Race to Witch Mountain. 
Question : Which is the basis of Race to Witch Mountain?

SOLUTION:
based on