Assertion: pill | /r/HasProperty | combination pills
Facets:
Source sentences:
text: Most birth control pills are "combination pills" containing a mix of the hormones estrogen and progesterone to prevent ovulation (the release of an egg during the monthly cycle).
text: There are two common birth control pills: Combination pills which contain estrogen and progestin, and the progestin-only pills which are commonly called minipills or POPs.