Something to that effect.
( ( Something ( to ( that effect ) ) ) . )
(ROOT (NP (NP (NN Something)) (PP (TO to) (NP (DT that) (NN effect))) (. .)))
That's approximately what it means. 
( That ( ( 's ( approximately ( what ( it means ) ) ) ) . ) )
(ROOT (S (NP (DT That)) (VP (VBZ 's) (ADJP (RB approximately) (SBAR (WHNP (WP what)) (S (NP (PRP it)) (VP (VBZ means)))))) (. .)))