Assertion: fern | /r/HasProperty | dominant group of plants
Facets:
value: in forest
type: LOCATION
value: on earth
type: LOCATION
Source sentences:
text: They were once the dominant group of plants in forest but our now outcompeted by the more advanced gymnosperms and angiosperms.
text: Although ferns and plants like them were once the dominant plant species on earth, that began to change about 230 million years ago, when the cycads and conifers started to take over.
text: Ferns were once the dominant group of plants in forest but they have been outcompeted since the evolution of gymnosperms and angiosperms.