of the most entertaining bonds in years 
(ROOT (PP (IN of) (NP (NP (DT the) (ADJP (RBS most) (JJ entertaining)) (NNS bonds)) (PP (IN in) (NP (NNS years))))))
(ROOT (PP (IN ) (NP (NP (DT ) (ADJP (RBS ) (JJ )) (NNS )) (PP (IN ) (NP (NNS ))))))