( ( Maps ( that ( ( ( show ( the contours ) ) ( under ( bodies ( of water ) ) ) ) ( through ( depth soundings ) ) ) ) ) ( ( are ( called ( bathymetric maps ) ) ) . ) )
(ROOT (S (NP (NP (NNS Maps)) (SBAR (WHNP (WDT that)) (S (VP (VBP show) (NP (DT the) (NNS contours)) (PP (IN under) (NP (NP (NNS bodies)) (PP (IN of) (NP (NN water))))) (PP (IN through) (NP (NN depth) (NNS soundings))))))) (VP (VBP are) (VP (VBN called) (NP (JJ bathymetric) (NNS maps)))) (. .)))
Maps that show the contours under bodies of water through depth soundings are called bathymetric maps.
(ROOT (S (NP (DT A) (JJ bathymetric) (NN map)) (VP (MD can) (VP (VB show) (NP (NP (DT the) (NNS features)) (PP (IN of) (NP (NP (DT the) (NN bottom)) (PP (IN of) (NP (NP (DT a) (NN body)) (PP (IN of) (NP (NN water)))))))))) (. .)))