Snow snow Next Saturday January 1 in the city of Seattle? 
[IN:GET_WEATHER Snow [SL:WEATHER_ATTRIBUTE snow ] [SL:DATE_TIME Next Saturday January 1 ] in the city of [SL:LOCATION Seattle ] ?  ]
[IN:GET_WEATHER Snow [SL:WEATHER_ATTRIBUTE snow ] [SL:DATE_TIME Next Saturday January 1 ] in the city of [SL:LOCATION Seattle ] ?  ]