Assertion: blue whale's weight | /r/HasProperty | 173 metric tons
Facets:
value: for a southern hemisphere female
type: OTHER
value: in 1947
type: TEMPORAL
Source sentences:
text: The heaviest weight ever reported was 173 metric tons (191 short tons), for a southern hemisphere female in 1947, although it is likely that the largest blue whales would have weighed over 200 short tons (181 t).