Assertion: birth's baby | /r/HasProperty | born in the u.s.
Facets:
value: each year
type: TEMPORAL
Source sentences:
text: The 2007 Institute of Medicine report Preterm Birth found that the 550,000 premature babies born each year in the U.S. run up about $26 billion in annual costs, mostly related to care in neonatal intensive care units, but the real tab may top $50 billion.