( ( In ( ( 1980 and ) 1981 ) ) ( , ( ( the ( Voyager ( 2 spacecraft ) ) ) ( ( ( sent back ) ( ( close-up views ) ( of ( ( Saturn and ) ( its ( ( rings and ) moons ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (CD 1980) (CC and) (CD 1981))) (, ,) (NP (DT the) (NNP Voyager) (CD 2) (NN spacecraft)) (VP (VBD sent) (PRT (RP back)) (NP (NP (NN close-up) (NNS views)) (PP (IN of) (NP (NP (NNP Saturn)) (CC and) (NP (PRP$ its) (NNS rings) (CC and) (NNS moons)))))) (. .)))
In 1980 and 1981, the Voyager 2 spacecraft sent back close-up views of Saturn and its rings and moons.
(ROOT (S (NP (DT The) (NN voyager) (CD 1) (NN spacecraft)) (VP (VBD visited) (NP (NN saturn)) (PP (IN in) (NP (CD 1980)))) (. .)))