The free service in Mountain View , the company 's base in the heart of Silicon Valley , will become generally available on Wednesday after nine months of testing .
Silicon Valley /location/location/contains Mountain View
DT JJ NN IN NNP NNP , DT NN POS NN IN DT NN IN NNP NNP , MD VB RB JJ IN NNP IN CD NNS IN NN .
Silicon Valley
LOCATION
Mountain View
LOCATION
/location/location/contains