In the latter case the grazing land is extended to the small tributaries of the Kunyokuo river where drinking water is available for the animals in the rainy season.
(the grazing land; is extended; to the small tributaries of the Kunyokuo river; L:In the latter case) (drinking water; is; available for the animals in the rainy season; L:the Kunyokuo river)
the grazing land drinking water
is extended is
to the small tributaries of the Kunyokuo river L:In the latter case
available for the animals in the rainy season L:the Kunyokuo river