fossil fuel subgroup of fuel, 13 assertions
AtLocation 1
one time biomass 0.25
CapableOf 5
produce heat 0.40
account for 95 percent … 0.30
continue to store the c… 0.25
take millions of years 0.21
become more expensive 0.16
HasA 1
carbon 0.30
IsA 1
fuel 0.30
ReceivesAction 5
burned 0.61
consumed 0.48
derived 0.45
limited 0.29
depleted 0.25