( ( ( These ( four types ) ) ( of propositions ) ) ( ( are ( related ( in ( many ways ) ) ) ) . ) )
(ROOT (S (NP (NP (DT These) (CD four) (NNS types)) (PP (IN of) (NP (NNS propositions)))) (VP (VBP are) (VP (VBN related) (PP (IN in) (NP (JJ many) (NNS ways))))) (. .)))
These four types of propositions are related in many ways.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD four) (NNS types)) (PP (IN of) (NP (NNS bosons))))) (. .)))