user: Question: Name the M809 seris with M939 series of M931/932
Columns: ['Type', 'wheelbase', 'M39 series', 'M809 series', 'M939 series']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Cargo (14’)', 'long', 'M54', 'M813', 'M923/925']
SQL:

assistant: SELECT "M809 series" FROM "Table" WHERE "M939 series" = 'M931/932';