Assertion: birch | /r/HasProperty | the first
Facets:
value: usually
type: DEGREE
value: after the ice age
type: TEMPORAL
Source sentences:
text: With Scots Pine, Birch is our oldest British native tree; after the Ice Age, they were the first to spread over the countryside.
text: Birch is a pioneer species, which is usually one of the first to colonise a site.
text: When the huge glaciers of the last ice age receded, birch trees would have been one of the first to re-colonise the rocky, ice-scoured landscape.