Simplify the following text for a Grade 6 native English-speaking person.
Original: The Nubra river originating from the Siachen glacier also behaves like the Shyok , before Tirit the SE flowing river takes a NW turn on meeting the river Shyok .
Simplified: The Nubra river , originating from the Siachen glacier , also behaves like the Shyok . Before Tirit the SE flowing river Nubra takes a NW turn on meeting the river Shyok .