What is the build date for PRR Class gf30a?
CREATE TABLE table_name_80 (build_date VARCHAR, prr_class VARCHAR)
SELECT build_date FROM table_name_80 WHERE prr_class = "gf30a"
### Context: CREATE TABLE table_name_80 (build_date VARCHAR, prr_class VARCHAR) ### Question: What is the build date for PRR Class gf30a? ### Answer: SELECT build_date FROM table_name_80 WHERE prr_class = "gf30a"