appointment on Monday is at 8:30am. at what time should I leave the house?
[IN:GET_ESTIMATED_DEPARTURE [SL:DESTINATION [IN:GET_EVENT [SL:CATEGORY_EVENT appointment ] [SL:DATE_TIME on Monday is at 8 : 30 am ] ] ] . at what time should I leave [SL:SOURCE [IN:GET_LOCATION_HOME the house ] ] ? ]