Assertion: mortar | /r/HasProperty | mounted in pit
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Often, four mortars were mounted in a pit that was only about 40 by 50 feet (12 by 15 m) in size.[note 9] Four circular areas about 18 feet (5.5 m) in diameter would fit into one of these early pits, producing a very crowded situation (given that two adjacent M1890 mortars mounted in such a pit would have their muzzles almost touching if they were traversed to face each other).