Assertion: armstrong gun | /r/HasProperty | successful
Facets:
value: against maoris in new zealand
type: TRANSITIVE-OBJECT
value: during the opium wars in china
type: TEMPORAL
Source sentences:
text: Armstrong guns were successful against Maoris in New Zealand and during the Opium Wars in China, but the development of ironclad ships in Europe demanded guns powerful enough to defeat armour, and the Armstrong gun’s breech closure was not strong enough to withstand large charges of powder.