That's an opportunity that very few people have had.
( That ( ( ( 's ( an opportunity ) ) ( that ( ( very ( few people ) ) ( have had ) ) ) ) . ) )
(ROOT (S (NP (DT That)) (VP (VBZ 's) (NP (DT an) (NN opportunity)) (SBAR (IN that) (S (NP (RB very) (JJ few) (NNS people)) (VP (VBP have) (VP (VBN had)))))) (. .)))
Pretty much everyone has that opportunity. 
( ( Pretty ( much everyone ) ) ( ( has ( that opportunity ) ) . ) )
(ROOT (S (NP (NNP Pretty) (JJ much) (NN everyone)) (VP (VBZ has) (NP (DT that) (NN opportunity))) (. .)))