What is the ERP W number where the frequency is smaller than 91.1?
CREATE TABLE table_name_6 (erp_w INTEGER, frequency_mhz INTEGER)
SELECT MAX(erp_w) FROM table_name_6 WHERE frequency_mhz < 91.1
### Context: CREATE TABLE table_name_6 (erp_w INTEGER, frequency_mhz INTEGER) ### Question: What is the ERP W number where the frequency is smaller than 91.1? ### Answer: SELECT MAX(erp_w) FROM table_name_6 WHERE frequency_mhz < 91.1