what is part 1 when the class is 7d?
CREATE TABLE table_name_78 (part_1 VARCHAR, class VARCHAR)
SELECT part_1 FROM table_name_78 WHERE class = "7d"
### Context: CREATE TABLE table_name_78 (part_1 VARCHAR, class VARCHAR) ### Question: what is part 1 when the class is 7d? ### Answer: SELECT part_1 FROM table_name_78 WHERE class = "7d"