X1014239299-00436-96087</DOCNO> Coal In a surface mining operation in ... China, Facts about A coal miner, working underground, holds ... COAL One of the most important natural fuels, coal was formed from plant life buried in the Earth millions of years ago.
(plant life; buried; in the Earth millions of years; T:ago) (X1014239299-00436-96087</DOCNO>; holds; COAL One of the most important natural fuels; L:In a surface mining operation in ... China, Facts about A coal miner) Context(X1014239299-00436-96087 < / DOCNO > holds,List([0, 133))):(X1014239299-00436-96087</DOCNO>; holds working; L:underground) Context(X1014239299-00436-96087 < / DOCNO > holds,List([0, 133))):(coal; was formed; from plant life)
X1014239299-00436-96087 < / DOCNO > holds,List([0, 133)) X1014239299-00436-96087 < / DOCNO > holds,List([0, 133))
plant life X1014239299-00436-96087</DOCNO> X1014239299-00436-96087</DOCNO> coal
buried holds holds working was formed
in the Earth millions of years T:ago
COAL One of the most important natural fuels L:In a surface mining operation in ... China, Facts about A coal miner
L:underground
from plant life