He was standing in front of a grey backdrop- somewhere that could be anywhere.
( ( ( ( He ( was ( standing ( in ( front ( of ( a ( grey backdrop ) ) ) ) ) ) ) ) - ) ( ( somewhere that ) ( could ( be anywhere ) ) ) ) . )
(ROOT (S (S (NP (PRP He)) (VP (VBD was) (VP (VBG standing) (PP (IN in) (NP (NP (NN front)) (PP (IN of) (NP (DT a) (JJ grey) (NN backdrop)))))))) (: -) (S (NP (RB somewhere) (WDT that)) (VP (MD could) (VP (VB be) (ADVP (RB anywhere))))) (. .)))
He stood in front of a backdrop.
( He ( ( stood ( in ( front ( of ( a backdrop ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD stood) (PP (IN in) (NP (NP (NN front)) (PP (IN of) (NP (DT a) (NN backdrop)))))) (. .)))