give a thought to the folks who prepare and 
(ROOT (S (VP (VB give) (NP (DT a) (NN thought)) (PP (IN to) (NP (NP (DT the) (NNS folks)) (SBAR (WHNP (WP who)) (S (VP (VP (VBP prepare)) (CC and)))))))))
(ROOT (S (VP (VB ) (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (NNS )) (SBAR (WHNP (WP )) (S (VP (VP (VBP )) (CC )))))))))