Since fossil fuels are buried deep beneath the Earth's crust, oil companies seek to find rich reservoirs underneath the soil.
(fossil fuels; are buried; deep beneath the Earth's crust) (oil companies; seek; to find rich reservoirs underneath the soil) Context(oil companies seek,List([62, 80))):(oil companies; seek to find; rich reservoirs underneath the soil)
oil companies seek,List([62, 80))
fossil fuels oil companies oil companies
are buried seek seek to find
deep beneath the Earth's crust
to find rich reservoirs underneath the soil
rich reservoirs underneath the soil