( ( During ( the ( last ( 68 years ) ) ) ) ( , ( ( ( a legion ) ( of ( distinguished physicists ) ) ) ( ( has ( ( devoted ( ( inquiries and ) careers ) ) ( to ( ( ( the ( puzzling neutrino ) ) , ) ( which ( was ( ( given ( its name ) ) ( by ( the ( great ( Italian-American ( scientist ( Enrico Fermi ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN During) (NP (DT the) (JJ last) (CD 68) (NNS years))) (, ,) (NP (NP (DT a) (NN legion)) (PP (IN of) (NP (JJ distinguished) (NNS physicists)))) (VP (VBZ has) (VP (VBN devoted) (NP (NNS inquiries) (CC and) (NNS careers)) (PP (TO to) (NP (NP (DT the) (ADJP (JJ puzzling)) (NN neutrino)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBD was) (VP (VBN given) (NP (PRP$ its) (NN name)) (PP (IN by) (NP (DT the) (JJ great) (JJ Italian-American) (NN scientist) (NNP Enrico) (NNP Fermi))))))))))) (. .)))
During the last 68 years, a legion of distinguished physicists has devoted inquiries and careers to the  puzzling neutrino, which was given its name by the great Italian-American scientist Enrico Fermi.
(ROOT (S (NP (NNP Enrico) (NNS fermi)) (VP (VBZ is) (NP (NP (DT the) (NN name)) (PP (IN of) (NP (NP (DT the) (NN scientist)) (SBAR (WHNP (WP who)) (S (VP (VBD named) (NP (NNS neutrinos))))))))) (. .)))