Assertion: hammer | /r/CapableOf | retain wbc middleweight titles
Facets:
value: on 4 november
type: TEMPORAL
Source sentences:
text: On 4 November 2017, Hammer retained her WBO and WBC middleweight titles with a fourth-round knockout win over Gifty Amanua Ankrah at the SportScheck Allwetteranlage in Munich.