Students must learn how to take precautions to use the net safely.
(Students; must learn; how to take precautions to use the net safely) Context(Students must learn,List([0, 19))):(Students; must learn to take; precautions; to use the net safely) Context(Students must learn to take,List([0, 31))):(Students; must learn to take precautions to use safely; the net)
Students must learn,List([0, 19)) Students must learn to take,List([0, 31))
Students Students Students
must learn must learn to take must learn to take precautions to use safely
how to take precautions to use the net safely
precautions to use the net safely
the net