( ( Bromine water ) ( ( ( ( ( is brown ) , ) and ) ( will ( ( lose ( its color ) ) ( ( ( with ( an alkene ) ) ( but not ) ) ( with ( an alkane ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Bromine) (NN water)) (VP (VP (VBZ is) (ADJP (JJ brown))) (, ,) (CC and) (VP (MD will) (VP (VB lose) (NP (PRP$ its) (NN color)) (PP (PP (IN with) (NP (DT an) (NN alkene))) (CONJP (CC but) (RB not)) (PP (IN with) (NP (DT an) (NN alkane))))))) (. .)))
Bromine water is brown , and will lose its color with an alkene but not with an alkane .
(ROOT (S (NP (NNS Alkenes)) (VP (VBP are) (VP (VBN formed) (PP (IN from) (NP (NP (DT an) (NN alcohol)) (SBAR (WHNP (WDT that)) (S (VP (VBZ loses) (NP (NN water))))))))) (. .)))