( ( ( Jurassic coal ) ( measure-derived ( hydrocarbon ( reservoir theory ) ) ) ) . )
(ROOT (NP (NP (JJ Jurassic) (NN coal)) (NP (JJ measure-derived) (NN hydrocarbon) (NN reservoir) (NN theory)) (. .)))
Jurassic coal measure-derived hydrocarbon reservoir theory.
(ROOT (S (NP (PRP We)) (VP (VBP call) (NP (NP (DT the) (JJ solid) (NN form)) (PP (IN of) (NP (JJ hydrocarbons) (NN coal))))) (. .)))