Table: akari
Columns: name
space_agency
launch_date
terminated
location

Question: When did NASA launch the wide field infrared explorer (wire)?
SQL: SELECT "launch_date" FROM akari WHERE "space_agency" = 'nasa' AND "name" = 'wide field infrared explorer (wire)'

Question: Which space agency launched the herschel space observatory?
SQL: SELECT "space_agency" FROM akari WHERE "name" = 'herschel space observatory'