What is the Pollen concentration in Atlanta the weekend? 
[IN:UNSUPPORTED_WEATHER What is the [SL:WEATHER_ATTRIBUTE Pollen concentration ] in [SL:LOCATION Atlanta ] the [SL:DATE_TIME weekend ] ?  ]
[IN:UNSUPPORTED_WEATHER What is the [SL:WEATHER_ATTRIBUTE Pollen concentration ] in [SL:LOCATION Atlanta ] the [SL:DATE_TIME weekend ] ?  ]