The concert starts at 7 pm, I want to arrive an hour early, what time should I leave home?
[IN:GET_ESTIMATED_DEPARTURE [SL:DESTINATION [IN:GET_EVENT [SL:CATEGORY_EVENT The concert ] starts [SL:DATE_TIME at 7 pm ] ] ] , I want to arrive an [SL:DATE_TIME_ARRIVAL hour early ] , what time should I leave [SL:SOURCE [IN:GET_LOCATION_HOME home ] ] ? ]