Two is enough for a secret.
( Two ( ( is ( enough ( for ( a secret ) ) ) ) . ) )
(ROOT (S (NP (CD Two)) (VP (VBZ is) (ADJP (JJ enough) (PP (IN for) (NP (DT a) (NN secret))))) (. .)))
The more people who know, the more secure the secret.
( ( ( The ( more people ) ) ( who know ) ) ( , ( ( the more ) ( ( secure ( the secret ) ) . ) ) ) )
(ROOT (S (NP (NP (DT The) (JJR more) (NNS people)) (SBAR (WHNP (WP who)) (S (VP (VBP know))))) (, ,) (ADVP (DT the) (RBR more)) (VP (VB secure) (NP (DT the) (NN secret))) (. .)))