Assertion: crick | /r/CapableOf | investigate the rna
Facets:
value: at this time
type: TEMPORAL
Source sentences:
text: At this time, working again with Watson, who had spent a couple of years at the California Institute of Technology (Caltech), Crick investigated the RNA (ribonucleic acid) of viruses, and together they proposed models of viral structure which carried molecular biology into a new realm.