user: ### NOW ANSWER:
Question: What Japanese prefecture has Ibaraki, Tsukuba?
Columns: ['Name', 'Japanese', 'Population ( 2012 )', 'Date of designation', 'Region', 'Prefecture']
Types: ['text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Akashi', '明石', 290927.0, '2002-04-01', 'Kansai', 'Hyōgo']
SQL:

assistant: SELECT "Japanese" FROM "Table" WHERE "Prefecture" = 'Ibaraki' AND "Name" = 'Tsukuba';