Assertion: aletsch glacier | /r/CapableOf | lose mass
Facets:
value: since the mid-19th century
type: TEMPORAL
Source sentences:
text: The Aletsch Glacier in Switzerland is the largest valley glacier in the Alps and it has been losing mass since the mid-19th century.
text: The Aletsch Glacier in Switzerland is the largest valley glacier in the Alps and it has been losing mass since the mid-19th century.