Assertion: l tryptophan | /r/CreatedBy | engineered bacteria
Facets:
value: genetically
type: MANNER
Source sentences:
text: This became apparent to the media in August 1990 when Michael Osterholm, one of the original investigators at the Minnesota Department of Health, publicly admitted what federal investigators had known for months: the implicated L-tryptophan had been produced by a genetically engineered bacteria.