Assertion: gulf | /r/HasProperty | surrounded on southwest
Facets:
value: by thailand
type: OTHER
Source sentences:
text: The gulf is around 800 km (497 mi) long and up to 560 km (348 mi) wide, has a surface area of 320,000 km2 (123,553 sq mi) and is surrounded on the north, west and southwest by Thailand, on the northeast by Cambodia and Vietnam.