instruction:
Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
question:
The Battle of Adwa (also known as Adowa, or sometimes by the Italian name Adua) was fought on 1 March 1896 between the Ethiopian Empire and the Kingdom of Italy near the town of Adwa, Ethiopia, in Tigray.
answer:
The point in time of Battle of Adwa was when?


question:
The Gruffalo is a children's book by writer and playwright Julia Donaldson, illustrated by Axel Scheffler, that tells the story of a mouse, the protagonist of the book, taking a walk in a European forest.
answer:
What person illustrated The Gruffalo?


question:
Offenbach Ost station was opened on 15 November 1873 on the Frankfurt-Hanau line.
answer:

When did Offenbach Ost station begin?