oh it's fun i call
( oh ( ( it 's ) ( fun ( i call ) ) ) )
(ROOT (PP (VBN oh) (NP (NP (PRP it) (POS 's)) (FW fun) (FW i) (NN call))))
It is not fun.
( It ( ( ( is not ) fun ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (RB not) (NP (NN fun))) (. .)))