What is the lowest ERP W of  w223bp?
CREATE TABLE table_name_6 (erp_w INTEGER, call_sign VARCHAR)
SELECT MIN(erp_w) FROM table_name_6 WHERE call_sign = "w223bp"
### Context: CREATE TABLE table_name_6 (erp_w INTEGER, call_sign VARCHAR) ### Question: What is the lowest ERP W of  w223bp? ### Answer: SELECT MIN(erp_w) FROM table_name_6 WHERE call_sign = "w223bp"