user: Question: What class in the word with part 4 "giheizan"?
Columns: ['Class', 'Part 1', 'Part 2', 'Part 3', 'Part 4', 'Verb meaning']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'rītan', 'reit', 'ritun', 'giritan', 'to ride']
SQL:

assistant: SELECT "Class" FROM "Table" WHERE "Part 4" = 'giheizan';