Will Raining be when visiting Grandpa tomorrow? 
[IN:GET_WEATHER Will [SL:WEATHER_ATTRIBUTE Raining ] be when visiting [SL:LOCATION [IN:UNSUPPORTED_PEOPLE Grandpa ] ] [SL:TYPE_RELATION tomorrow ] ?  ]
[IN:GET_WEATHER Will [SL:WEATHER_ATTRIBUTE Raining ] be when visiting [SL:LOCATION [IN:UNSUPPORTED_PEOPLE Grandpa ] ] [SL:TYPE_RELATION tomorrow ] ?  ]