In the small marina you can eat while surrounded by expensive boats.
( ( In ( the ( small marina ) ) ) ( you ( ( can ( eat ( while ( surrounded ( by ( expensive boats ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN In) (NP (DT the) (JJ small) (NN marina))) (NP (PRP you)) (VP (MD can) (VP (VB eat) (SBAR (IN while) (S (VP (VBN surrounded) (PP (IN by) (NP (JJ expensive) (NNS boats)))))))) (. .)))
There are no boats in the small marina.
( There ( ( are ( ( no boats ) ( in ( the ( small marina ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (DT no) (NNS boats)) (PP (IN in) (NP (DT the) (JJ small) (NN marina))))) (. .)))