( ( ( left lobe ) ( of ( liver 15 ) ) ) . )
(ROOT (NP (NP (JJ left) (NN lobe)) (PP (IN of) (NP (NN liver) (CD 15))) (. .)))
left lobe of liver 15.
(ROOT (S (NP (DT The) (NN gallbladder)) (VP (VBZ is) (PP (IN near) (NP (NP (DT the) (JJ right) (NN lobe)) (PP (IN of) (NP (DT the) (NN liver)))))) (. .)))
The gallbladder is near the right lobe of the liver.