While parents may pick up this gay semaphore, kids aren't likely to.
( ( While ( parents ( may ( ( pick up ) ( this ( gay semaphore ) ) ) ) ) ) ( , ( kids ( ( ( are n't ) ( likely to ) ) . ) ) ) )
(ROOT (S (SBAR (IN While) (S (NP (NNS parents)) (VP (MD may) (VP (VB pick) (PRT (RP up)) (NP (DT this) (JJ gay) (NN semaphore)))))) (, ,) (NP (NNS kids)) (VP (VBP are) (RB n't) (ADJP (JJ likely) (PP (TO to)))) (. .)))
Gay kids always recognize gay signals. 
( ( Gay kids ) ( always ( ( recognize ( gay signals ) ) . ) ) )
(ROOT (S (NP (JJ Gay) (NNS kids)) (ADVP (RB always)) (VP (VBP recognize) (NP (JJ gay) (NNS signals))) (. .)))