( There ( ( are ( ( two types ) ( of ( lever machines ) ) ) ) ; ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD two) (NNS types)) (PP (IN of) (NP (NN lever) (NNS machines))))) (: ;)))
There are two types of lever machines;
(ROOT (S (NP (DT The) (JJ long) (NN bone)) (VP (VBP work) (PP (IN as) (NP (NN lever)))) (. .)))