But if you take it seriously, the anti-abortion position is definitive by definition.
( But ( ( if ( you ( ( take it ) seriously ) ) ) ( , ( ( the ( anti-abortion position ) ) ( ( is ( definitive ( by definition ) ) ) . ) ) ) ) )
(ROOT (S (CC But) (SBAR (IN if) (S (NP (PRP you)) (VP (VBP take) (NP (PRP it)) (ADVP (RB seriously))))) (, ,) (NP (DT the) (JJ anti-abortion) (NN position)) (VP (VBZ is) (NP (NP (JJ definitive)) (PP (IN by) (NP (NN definition))))) (. .)))
If you decide to be serious about supporting anti-abortion, it's a very run of the mill belief to hold.
( ( If ( you ( decide ( to ( be ( serious ( about ( supporting anti-abortion ) ) ) ) ) ) ) ) ( , ( it ( ( 's ( ( ( a ( very run ) ) ( of ( the ( mill belief ) ) ) ) ( to hold ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (PRP you)) (VP (VBP decide) (S (VP (TO to) (VP (VB be) (ADJP (JJ serious) (PP (IN about) (S (VP (VBG supporting) (NP (JJ anti-abortion)))))))))))) (, ,) (NP (PRP it)) (VP (VBZ 's) (NP (NP (DT a) (JJ very) (NN run)) (PP (IN of) (NP (DT the) (NN mill) (NN belief))) (S (VP (TO to) (VP (VB hold)))))) (. .)))