Assertion: kangaroo's baby | /r/HasProperty | born at less than 23 weeks
Facets:
Source sentences:
text: In comparison, a human embryo at a similar stage of development would be about seven weeks old, and premature babies born at less than 23 weeks are usually not mature enough to survive.
text: In comparison, a human embryo at a similar stage of development would be about 7 weeks old, and premature babies born at less than 23 weeks are usually not mature enough to survive.