CPL @1097 (93.8%) on 19-jan-2018 [ "arg2 such as sulphur arg1" "arg2 including sulfur arg1" "arg2 like sulfur arg1" "arg2 like nitrogen arg1" ] using (dioxide, major_air_pollutants)
NELL has only weak evidence for items listed in grey
CPL @1098 (87.5%) on 21-jan-2018 [ "arg2 including carbon arg1" "arg2 such as carbon arg1" "arg2 include carbon arg1" ] using (monoxide, major_air_pollutants)