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: hile other distant relatives included Senator J.M. Howard and President William Howard Taft. Link Information: William Howard Taft (September 15, 1857 – March 8, 1930) was the 27th president of the United States (1909–1913) Answer: 4

SOLUTION: How many years was Taft president?

PROBLEM: Context: Graf lost an Australian Open quarterfinal to Jana Novotná, the first time she did not reach the semifinals of a Grand Slam singles tournament since the 1986 French Open Link Information: none Answer: none

SOLUTION: How many grand slam tournaments did Steffi Graf win over her career?

PROBLEM: Context: Chief Mechanical Engineer, Robert Billinton Link Information: Billinton died in 1904, Answer: 5 April 1844

SOLUTION:
When was the engineer who died in 1904 born?