( ( For ( those ( who ( ( have n't ) ( taken chemistry ) ) ) ) ) ( , ( ( ( acids and ) bases ) ( ( are ( ( ( chemical opposites ) -- ) ( ( ( mix ( them together ) ) and ) ( you ( get ( ( ( ( a substance ) ( that ( 's neutral ) ) ) , ) ( neither ( ( acid nor ) basic ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (NP (DT those)) (SBAR (WHNP (WP who)) (S (VP (VBP have) (RB n't) (VP (VBN taken) (NP (NN chemistry)))))))) (, ,) (NP (NNS acids) (CC and) (NNS bases)) (VP (VBP are) (NP (NP (NN chemical) (NNS opposites)) (: --) (S (S (VP (VB mix) (S (NP (PRP them)) (ADJP (RB together))))) (CC and) (S (NP (PRP you)) (VP (VBP get) (NP (NP (NP (DT a) (NN substance)) (SBAR (WHNP (WDT that)) (S (VP (VBZ 's) (ADJP (JJ neutral)))))) (, ,) (ADJP (CC neither) (JJ acid) (CC nor) (JJ basic)))))))) (. .)))
For those who haven't taken chemistry, acids and bases are chemical opposites--mix them together and you get a substance that's neutral, neither acid nor basic.
(ROOT (S (NP (PRP You)) (VP (VBP call) (S (NP (NP (DT a) (NN substance)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (RB not) (NP (NP (DT an) (NN acid)) (CC or) (NP (DT a) (NN base))))))) (ADJP (JJ neutral)))) (. .)))