CPL @1104 (78.2%) on 18-mar-2018 [ "_ fired furnaces" "_ fired central heating" "_ fired units" "_ log heater" "_ is a clean-burning fuel" "_ is a fossil fuel" "_ is a clean-burning" "_ is cleaner burning" ] using propane_gas
CMC @1112 (98.7%) on 19-jul-2018 [ PREFIX=ga 5.34833 SUFFIX=as 4.19281 LAST_WORD=gas 2.85899 LASTPREFIX=ga 2.82852 SHORT_WORDSHAPE=a 2.09580 LASTSUFFIX=as 1.84432 POS=NN 0.40330 FULL_POS=NN_NN -0.76962 CHARS -3.82125 WORDS -5.10441 ] using propane_gas
relations
NELL has only weak evidence for items listed in grey
CPL @1104 (87.5%) on 18-mar-2018 [ "arg2 or compressed natural arg1" "arg2 or liquid natural arg1" "arg2 or liquefied natural arg1" ] using (gas, propane_gas)