Assertion: semen's sperm | /r/HasProperty | engineered
Facets:
value: genetically
type: MANNER
value: from stem cells
type: OTHER
Source sentences:
text: If sperm are able to be engineered from stem cells, then stem cells from a woman may be suitable as the basis for this technique.
text: Artificial sperm are genetically engineered sperm cells created from other types of cells.