Assertion: castle's fortification | /r/HasProperty | formed around a number of compact lobes
Facets:
value: in a quatrefoil or trefoil shape
type: OTHER
Source sentences:
text: Each fort had a slightly different design, but as a group they shared common features, with the fortification formed around a number of compact lobes, often in a quatrefoil or trefoil shape, designed to give the guns a 360-degree angle of fire.