People in the Netherlands found they could dig down and find this fossil fuel underground, and soon they were trading coal to England .
(they; find; this fossil fuel; L:underground) (they; were trading; coal; to England; T:soon) (People in the Netherlands; found; they could dig down and find this fossil fuel underground, and soon they were trading coal to England) Context(People in the Netherlands found,List([0, 31))):(they; could dig down; )
People in the Netherlands found,List([0, 31))
they they People in the Netherlands they
find were trading found could dig down
this fossil fuel L:underground
coal to England T:soon
they could dig down and find this fossil fuel underground, and soon they were trading coal to England