How many counties are there in the San Francisco/San Jose/Oakland Bay Area?
There are nine Bay Area counties
Alameda
Contra Costa
Marin
San Francisco
San Mateo
Santa Clara
Napa
Solano
Sonoma
<START_INST>How many counties are there in the San Francisco/San Jose/Oakland Bay Area?<END_INST><START_CTX>There are nine Bay Area counties<END_CTX><START_A>Alameda
Contra Costa
Marin
San Francisco
San Mateo
Santa Clara
Napa
Solano
Sonoma<END_A>