In an effort to encourage purchases of natural gas vehicles , and to expand the infrastructure that supports them , Los Angeles and several other California cities provide free parking .
California /location/location/contains Los Angeles
IN DT NN TO VB NNS IN JJ NN NNS , CC TO VB DT NN WDT VBZ PRP , NNP NNP CC JJ JJ NNP NNS VBP JJ NN .
California
LOCATION
Los Angeles
LOCATION
/location/location/contains