TASK DEFINITION: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
PROBLEM: Context : MOA-2009-BLG-387L is a red dwarf in the Sagittarius constellation that is host to the planet MOA-2009-BLG-387Lb.
Answer : Sagittarius

SOLUTION: What constellation is MOA-2009-BLG-387L part of?

PROBLEM: Context : The Pont Alexandre III is a deck arch bridge that spans the Seine in Paris.
Answer : Seine

SOLUTION: What does Pont Alexandre III cross over?

PROBLEM: Context : According to the Greek historian Herodotus (VI, 43) Artazostre was given in marriage to Mardonius, young son of the noble Gobryas, not much before he took the command of the Persian army in Thrace and Macedon (c. 493/492 BC).
Answer : Mardonius

SOLUTION:
What is Artazostre's spouse's name?