Assertion: mastodon | /r/AtLocation | new york state
Facets:
value: after the ice age
type: TEMPORAL
Source sentences:
text: Either the mastodons lived in New York State after the ice age, and got themselves mired in the bogs where their bodies are found, or they got mired in the bogs before the ice age, and somehow escaped destruction by the passage over them of the mile-thick ice sheet.