( ( The odor ) ( ( is ( very ( strong ( in ( ( an animal ) ( that ( ( has not ) ( been neutered ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN odor)) (VP (VBZ is) (ADJP (RB very) (JJ strong) (PP (IN in) (NP (NP (DT an) (NN animal)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (RB not) (VP (VBN been) (VP (VBN neutered)))))))))) (. .)))
The odor is very strong in an animal that has not been neutered.
(ROOT (S (NP (JJ Strong) (NN odor)) (VP (VBZ helps) (S (NP (DT some) (NNS animals)) (VP (VB defend) (NP (PRP themselves)) (PP (IN against) (NP (NNS predators)))))) (. .)))
Strong odor helps some animals defend themselves against predators.