Assertion: empire's territory | /r/CapableOf | border the sea of marmara
Facets:
value: to the west
type: LOCATION
Source sentences:
text: Hemmed in on the east by the more powerful Turkmen principality of Germiyan, Osman and his immediate successors concentrated their attacks on Byzantine territories bordering the Bosporus and the Sea of Marmara to the west.