Mountains may rise, rivers may change course, new roads may be created.
(new roads; may be created; ) Context(new roads may be created,List([46, 70))):(rivers; may change; course) Context(rivers may change new roads may be created,List([20, 70))):(Mountains; may rise; )
new roads may be created,List([46, 70)) rivers may change new roads may be created,List([20, 70))
new roads rivers Mountains
may be created may change may rise
course