Hovis explains, "We're looking at a series of minerals, substances that make up rocks.
(substances; make up; rocks) (Hovis; explains; We're looking at a series of minerals) Context(Hovis explains,List([0, 14))):(We; 're looking; at a series of minerals)
Hovis explains,List([0, 14))
substances Hovis We
make up explains 're looking
rocks
We're looking at a series of minerals
at a series of minerals