content to dog-paddle in the mediocre end of the pool 
(ROOT (NP (NN content) (S (VP (TO to) (VP (VB dog-paddle) (PP (IN in) (NP (NP (DT the) (JJ mediocre) (NN end)) (PP (IN of) (NP (DT the) (NN pool))))))))))
(ROOT (NP (NN ) (S (VP (TO ) (VP (VB ) (PP (IN ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (DT ) (NN ))))))))))