Two of them saw Thorn coming.
( ( Two ( of them ) ) ( ( saw ( Thorn coming ) ) . ) )
(ROOT (S (NP (NP (CD Two)) (PP (IN of) (NP (PRP them)))) (VP (VBD saw) (NP (NNP Thorn) (VBG coming))) (. .)))
Thorn was seen coming to battle by two of them.
( Thorn ( ( was ( seen ( coming ( to ( battle ( by ( two ( of them ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Thorn)) (VP (VBD was) (VP (VBN seen) (S (VP (VBG coming) (S (VP (TO to) (VP (VB battle) (PP (IN by) (NP (NP (CD two)) (PP (IN of) (NP (PRP them)))))))))))) (. .)))