TASK DEFINITION: In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
PROBLEM: Context: Yeh Jawaani Hai Deewani ( This youth is crazy) is a 2013 Indian romantic drama film, directed by Ayan Mukerji, written by Mukerji and Hussain Dalal, and produced by Link Information: Karan Johar entered the film industry as an assistant director on Aditya Chopra's Dilwale Dulhania Le Jayenge (1995) Answer: 1995

SOLUTION: When did the producer of Yeh Jawaani Hai Deewani start working in the field of film?

PROBLEM: Context: His father, Hamilton Fish Kean (1862–1941), was a United States Senator from New Jersey Link Information: His father, Hamilton Fish Kean (1862–1941), was a United States Senator from New Jersey Answer: a single six-year term

SOLUTION: How many terms as a senator did  Robert Kean's father serve?

PROBLEM: Context: In 1884, the Round Top Branch's wye with double spurs and station was built at the east end of Wheatfield Road, and in 1894 the Gettysburg Electric Railway was laid along a west portion of the road (trolleys also crossed the east end near Round Top Station). Link Information: The Gettysburg Electric Railway Company was chartered August 4, 1891 Answer: 3

SOLUTION:
How old was the railway that was laid on Wheatfield road in 1894?