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.

Ex Input:
Context: After the war ended the DGOS presented performances by European opera companies such as the Opera-Comique, Hamburg Opera and the Netherlands Opera Link Information: none Answer: none

Ex Output:
Which European opera company presented by DGOS has been in operation for the greatest amount of years?


Ex Input:
Context: He began 2018 Link Information: He closed the year with third place at the Great Ethiopian Run Answer: Addis Ababa

Ex Output:
What city did his final race of 2018 start in?


Ex Input:
Context: 8-oxoguanine is usually formed by the interaction of reactive oxygen species (ROS) with the guanine base in DNA Link Information: The first isolation of guanine was reported in 1844 Answer: 1844 

Ex Output:

When was the discovery of the base in DNA that is involved in the formation of 8-oxoguanine?