Assertion: escort aircraft carrier | /r/HasProperty | purpose-built
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Escort aircraft carriers, such as USS Bogue, were sometimes purpose-built but most were converted from merchant ships as a stop-gap measure to provide anti-submarine air support for convoys and amphibious invasions.
text: Escort aircraft carriers, such as USS Bogue, were sometimes purpose-built, but most were converted from merchant ships as a stop-gap measure to provide anti-submarine air support for convoys and amphibious invasions.