How long will it take me to get from mom's house to grandpas house?
[IN:GET_ESTIMATED_DURATION How long will it take me to get from [SL:SOURCE [IN:GET_LOCATION_HOME [SL:TYPE_RELATION mom ] 's house ] ] to [SL:DESTINATION [IN:GET_LOCATION_HOME [SL:TYPE_RELATION grandpas ] house ] ] ? ]