燃やす
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black
block
calorific
carbon
charcoal
coal
combustible
combustion
copy
cut
dark
dirty
energy
environment
exploitation
extraction
factory
fossil
fuel
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heap
heat
industry
isolated
lump
material
mine
miner
mineral
natural
nuggets
ore
piece
pile
plant
pollution
power
production
resource
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space
stack
station
stone
white
work