He motioned to me as if they were going to cut off his head.
( He ( ( ( motioned ( to me ) ) ( as ( if ( they ( were ( going ( to ( ( cut off ) ( his head ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD motioned) (PP (TO to) (NP (PRP me))) (SBAR (RB as) (IN if) (S (NP (PRP they)) (VP (VBD were) (VP (VBG going) (S (VP (TO to) (VP (VB cut) (PRT (RP off)) (NP (PRP$ his) (NN head)))))))))) (. .)))
I grabbed a bowl of popcorn and eagerly awaited for the head slicing to happen.
( I ( ( ( ( grabbed ( ( a bowl ) ( of popcorn ) ) ) and ) ( eagerly ( awaited ( for ( ( the head ) ( slicing ( to happen ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VP (VBD grabbed) (NP (NP (DT a) (NN bowl)) (PP (IN of) (NP (NN popcorn))))) (CC and) (VP (ADVP (RB eagerly)) (VBD awaited) (PP (IN for) (NP (NP (DT the) (NN head)) (VP (VBG slicing) (S (VP (TO to) (VP (VB happen))))))))) (. .)))