Assertion: amazon's length | /r/HasProperty | at least6,400 km
Facets:
value: usually
type: DEGREE
Source sentences:
text: The length of the Amazon River is usually said to be "at least" 6,400 km (4,000 mi),but reported values lie anywhere between 6,275 km (3,899 mi) and 7,025 km (4,365 mi).The length measurements of many rivers are only approximations and differ from each other because there are many factors that determine the calculated river length, such as the position of the geographical source and the mouth, the scale of measurement, and the length measuring techniques (for details see also List of rivers by length ).