The universal credibility problem with polling is that wordsmithing and mathematics don't mix, and never will.
( ( ( The ( universal ( credibility problem ) ) ) ( with polling ) ) ( ( is ( that ( ( ( wordsmithing and ) mathematics ) ( ( ( ( ( ( do n't ) mix ) , ) and ) never ) will ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ universal) (NN credibility) (NN problem)) (PP (IN with) (NP (NN polling)))) (VP (VBZ is) (SBAR (IN that) (S (NP (NN wordsmithing) (CC and) (NNS mathematics)) (VP (VP (VBP do) (RB n't) (VP (VB mix))) (, ,) (CC and) (ADVP (RB never)) (VP (MD will)))))) (. .)))
Wordsmithing and mathematics go together nicely.
( ( ( Wordsmithing and ) mathematics ) ( ( go ( together nicely ) ) . ) )
(ROOT (S (NP (NN Wordsmithing) (CC and) (NNS mathematics)) (VP (VBP go) (ADVP (RB together) (RB nicely))) (. .)))