A silver revolver.
( ( A silver ) ( revolver . ) )
(ROOT (S (NP (DT A) (NN silver)) (VP (VBP revolver)) (. .)))
The revolver was silver.
( ( The revolver ) ( ( was silver ) . ) )
(ROOT (S (NP (DT The) (NN revolver)) (VP (VBD was) (NP (NN silver))) (. .)))