( ( ( Work -- ) ( Force ( times distance ) ) ) . )
(ROOT (NP (NP (NN Work)) (: --) (NP (NNP Force) (NNS times) (NN distance)) (. .)))
Work -- Force times distance.
(ROOT (S (NP (NNP Force) (NNS times) (NN distance)) (VP (VBZ is) (NP (NP (DT the) (NN equation)) (PP (IN for) (NP (NN work))))) (. .)))