These people are living proof that your investment pays off.
( ( These people ) ( ( are ( ( living proof ) ( that ( ( your investment ) ( pays off ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS people)) (VP (VBP are) (VP (VBG living) (NP (NN proof)) (SBAR (IN that) (S (NP (PRP$ your) (NN investment)) (VP (VBZ pays) (PRT (RP off))))))) (. .)))
The people are proof that the investment is worth it because their outcomes are greatly improved.
( ( The people ) ( ( are ( proof ( that ( ( the investment ) ( ( is ( worth it ) ) ( because ( ( their outcomes ) ( are ( greatly improved ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS people)) (VP (VBP are) (NP (NP (NN proof)) (SBAR (IN that) (S (NP (DT the) (NN investment)) (VP (VBZ is) (ADJP (JJ worth) (NP (PRP it))) (SBAR (IN because) (S (NP (PRP$ their) (NNS outcomes)) (VP (VBP are) (ADJP (RB greatly) (VBN improved)))))))))) (. .)))