['he', 'pay', 'attention', 'duty', 'to']
['<PRP>', 'pay-68-1', "Synset('feature.n.01')", "Synset('activity.n.01')", 'to']
The doctor can't be certain about that and that he should have been paying more attention to his duties.
<PERSON>14 can't be Synset('certain.a.04') about that and that <PRP> should have been paying Synset('more.a.02') Synset('feature.n.01') to <PRP> Synset('activity.n.01').