Assertion: prototype | /r/CapableOf | take possession of k55
Facets:
value: in 1954
type: TEMPORAL
Source sentences:
text: This theory is supported by the fact that the mass divergence rate—relative to the IPK—of Denmark's prototype, K48, since it took possession in 1949 is an especially high 78 μg per century while that of Germany's prototype has been even greater atever since it took possession of K55 in 1954.