other side that's a good idea
( ( other side ) ( that ( 's ( a ( good idea ) ) ) ) )
(ROOT (X (NP (JJ other) (NN side)) (SBAR (WHNP (WDT that)) (S (VP (VBZ 's) (NP (DT a) (JJ good) (NN idea)))))))
Doing the other side is a terrible idea.
( ( Doing ( the ( other side ) ) ) ( ( is ( a ( terrible idea ) ) ) . ) )
(ROOT (S (S (VP (VBG Doing) (NP (DT the) (JJ other) (NN side)))) (VP (VBZ is) (NP (DT a) (JJ terrible) (NN idea))) (. .)))