Assertion: type duke class frigate | /r/HasProperty | designed for anti-submarine warfare
Facets:
value: originally
type: MANNER
Source sentences:
text: The Type 23 Duke Class frigate was originally designed for anti-submarine warfare (ASW), but the addition of the vertical-launched Seawolf point missile defence system and the Boeing Harpoon surface-to-surface missile, has expanded its role to include anti-surface warfare (ASuW).