Classify the relation of question with context to one of these categories: 1) award received, 2) based on, collection, 3) conflict, 4) constellation, 5) convicted of, 6) date of death, 7) director, 8) drafted by, 9) educated at, 10) medical condition, 11) military branch, 12) narrative location, 13) occupation, 14) original network, 15) parent company, 16) point in time, 17) production company, 18) residence, 19) series, 20) service entry, 21) sex or gender, 22) spouse, 23) standards body question.

Q: Context : ``I Saw What I Saw'' is the sixth episode of the sixth season of the American television medical drama Grey's Anatomy, and the show's 108th episode overall. 
Question : What series is I Saw What I Saw from?

A: series
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Q: 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). 
Question : What is Artazostre's spouse's name?

A: spouse
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Q: Context : Singam (English: Lion) is a 2010 Indian Tamil action masala film directed by Hari, starring Suriya and Anushka Shetty in the lead. 
Question : Which place does Singam exist in?

A:
narrative location
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