Assertion: guyot | /r/CapableOf | subside through several phases
Facets:
value: from fringed reefed mountains
type: LOCATION
value: gradually
type: MANNER
Source sentences:
text: Guyots may once have had their summits above the water surface but gradually subsided through several phases from fringed reefed mountains to coral atolls, and eventually to flat-topped seamounts.