As the wind picks up particles, they brush across rocks or compacted earth, causing more particles to break away.
(the wind; picks up; particles) (they; brush; across rocks or compacted earth) Context(they brush,List([32, 42))):(they; brush across rocks or compacted earth causing; more particles to break away) Context(they brush causing,List([32, 83))):(more particles; to break away; )
they brush,List([32, 42)) they brush causing,List([32, 83))
the wind they they more particles
picks up brush brush across rocks or compacted earth causing to break away
particles
across rocks or compacted earth
more particles to break away