instruction:
You are given a passage. Using the information present in the passage, you need to classify it into one of the 10 topics: 0 - 'Society & Culture', 1 - 'Science & Mathematics', 2 - 'Health', 3 - 'Education & Reference', 4 - 'Computers & Internet', 5 - 'Sports', 6 - 'Business & Finance', 7 - 'Entertainment & Music', 8 - 'Family & Relationships', 9 - 'Politics & Government'.
question:
There's also an interesting section on how birdsong matches some very intellectual Music Theory in the book Animals in Translation. The conclusion seems to be that music might be a precursor to language in brain formation.

(Check around page 278 on Look Inside at the Amazon link below, or search for "birdsong")
answer:
1

question:
The Wall stretches over a formidable 6,350 km (3,946 miles), from Shanhai Pass on the Bohai Gulf in the east, at the limit between China proper and Manchuria, to Lop Nur in the southeastern portion of Xinjiang Uygur Autonomous Region.
answer:
3

question:
I'm not aware of any presently, however there has been at least one non-japanese geisha: Liza Dalby. In the 1970s this white american graduate student of anthropology went to Kyoto to study the geisha life. The link below is to her book.
answer:
2