Assertion: sperm bank's sperm | /r/HasProperty | frozen by japanese-american war hero
Facets:
value: in 1971
type: TEMPORAL
Source sentences:
text: Anecdotal evidence seems to back him up: For instance, a woman gave birth to twins in 2011 after being successfully impregnated with 40-year-old sperm frozen by a Japanese-American war hero in 1971.