Assertion: iceberg lettuce | /r/HasProperty | developed by w. atlee burpee
Facets:
value: from the french crisphead lettuce
type: OTHER
value: in 1894
type: TEMPORAL
Source sentences:
text: Iceberg lettuce was developed from the French Crisphead lettuce, Batavia, by W. Atlee Burpee & Co. in 1894.
text: Iceberg Lettuce was developed by W. Atlee Burpee at his farm, Fordhook Farm, at Doyleston, Pennsylvania.