Rivers write their own histories in geological records, recording the mighty natural forces that created and formed rivers, canyons and valleys.
(the mighty natural forces; created; ) (the mighty natural forces; formed; rivers, canyons and valleys) (Rivers; write; their own histories; recording the mighty natural forces) Context(Rivers write,List([0, 12))):(Rivers; write their own histories recording; the mighty natural forces that created and formed rivers, canyons and valleys)
Rivers write,List([0, 12))
the mighty natural forces the mighty natural forces Rivers Rivers
created formed write write their own histories recording
rivers, canyons and valleys
their own histories recording the mighty natural forces
the mighty natural forces that created and formed rivers, canyons and valleys