user_query: Tomorrow's weather, please. 
tree_str_mr: [__DG_INFORM__ [__ARG_TASK__ get_forecast ] [__ARG_TEMP_LOW__ 16 ] [__ARG_TEMP_HIGH__ 38 ] [__ARG_CLOUD_COVERAGE__ sunny ] ]
response: [__DG_INFORM__ The forecast calls for [__ARG_CLOUD_COVERAGE__ mostly sunny ] skies, a high of [__ARG_TEMP_HIGH__ __ARG_TEMP_HIGH__ ] , and a low of [__ARG_TEMP_LOW__ __ARG_TEMP_LOW__ ] ]
target: [__DG_INFORM__ The forecast calls for [__ARG_CLOUD_COVERAGE__ mostly sunny ] skies, a high of [__ARG_TEMP_HIGH__ __ARG_TEMP_HIGH__ ] , and a low of [__ARG_TEMP_LOW__ __ARG_TEMP_LOW__ ] ]
references: [__DG_INFORM__ The forecast calls for [__ARG_CLOUD_COVERAGE__ mostly sunny ] skies, a high of [__ARG_TEMP_HIGH__ __ARG_TEMP_HIGH__ ] , and a low of [__ARG_TEMP_LOW__ __ARG_TEMP_LOW__ ] ]