( ( Some laws ) ( ( are ( explained ( in ( ( greater detail ) ( than others ) ) ) ) ) . ) )
(ROOT (S (NP (DT Some) (NNS laws)) (VP (VBP are) (VP (VBN explained) (PP (IN in) (NP (NP (JJR greater) (NN detail)) (PP (IN than) (NP (NNS others))))))) (. .)))
Some laws are explained in greater detail than others.
(ROOT (S (NP (NP (NNP Archimedes) (POS ')) (NN law)) (VP (VBZ explains) (NP (SBAR (WHADVP (WRB why)) (S (NP (DT some) (NNS objects)) (VP (VBP float)))) (CC and) (NP (DT some) (NN sink))))))