Assertion: crick | /r/CapableOf | make helical models
Facets:
value: previously
type: TEMPORAL
value: in 1951
type: TEMPORAL
Source sentences:
text: Watson and Crick first made helical models with the phosphates at the centre of the helices.
text: Watson and Crick had also previously worked out a three-helical model, in 1951.
text: Watson and Crick first made helical models with the phosphates at the centre of the helices.
text: Watson and Crick first made helical models with the phosphates at the center of the helices.