( This ( ( is ( called lava ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ is) (VP (VBN called) (NP (NN lava)))) (. .)))
This is called lava .
(ROOT (S (NP (NP (NNP Lava)) (SBAR (WHNP (WDT that)) (S (VP (VBZ enters) (NP (DT the) (NN water)))))) (VP (VBZ is) (VP (VBN called) (NP (NN pillow) (NN lava)))) (. .)))