This all changed in 1992 when the Border Patrol built a steel fence south of San Diego from the Pacific Ocean to the port of entry at San Ysidro , Calif. , where Interstate 5 crosses into Mexico .
San Diego /location/location/contains San Ysidro
San Ysidro /location/neighborhood/neighborhood_of San Diego
DT RB VBN IN CD WRB DT NNP NNP VBD DT NN NN NN IN NNP NNP IN DT NNP NNP TO DT NN IN NN IN NNP NNP , NNP , WRB NNP CD NNS IN NNP .
San Diego
LOCATION
San Ysidro
LOCATION
/location/location/contains
San Ysidro
LOCATION
San Diego
LOCATION
/location/neighborhood/neighborhood_of