Pioneer plants are plants that help create an area where other plants can take root and 
(Pioneer plants; are; plants that help create an area) (other plants; can take; root; L:an area) (plants; help; create an area) Context(plants help,List([19, 35))):(plants; help create; an area where other plants can take root)
plants help,List([19, 35))
Pioneer plants other plants plants plants
are can take help help create
plants that help create an area
root L:an area
create an area
an area where other plants can take root