( ( Falling ( on couches ) ) ( ( is ( a ( significant point ) ) ) . ) )
(ROOT (S (S (VP (VBG Falling) (PP (IN on) (NP (NNS couches))))) (VP (VBZ is) (NP (DT a) (JJ significant) (NN point))) (. .)))
Falling on couches is a significant point.
(ROOT (S (NP (NP (NNS Zeroes)) (SBAR (WHNP (WDT that)) (S (VP (VBP show) (ADVP (RB only)) (SBAR (WHADVP (WRB where)) (S (NP (DT the) (JJ decimal) (NN point)) (VP (VBZ falls)))))))) (VP (VBP are) (RB not) (ADJP (JJ significant))) (. .)))