Coal mine overburden and residue remaining after coal is burned contain elements that frequently are toxic to plant and animal life.
(Coal mine overburden and residue; remaining; T:after coal is burned contain elements) (contain elements; are; toxic to plant and animal life; T:frequently) (coal; is burned; contain elements that frequently are toxic to plant and animal life) Context(coal is burned,List([49, 63))):(contain elements; to plant; )
coal is burned,List([49, 63))
Coal mine overburden and residue contain elements coal contain elements
remaining are is burned to plant
T:after coal is burned contain elements
toxic to plant and animal life T:frequently
contain elements that frequently are toxic to plant and animal life