How many kilometers is San Francisco from my current location
O O B-SL_UNIT_DISTANCE O B-SL_DESTINATION I-SL_DESTINATION O B-SL_SOURCE_IN_GET_LOCATION_SL_LOCATION_USER I-SL_SOURCE_IN_GET_LOCATION_SL_LOCATION_USER I-SL_SOURCE_IN_GET_LOCATION_SL_LOCATION_USER