A piece of this material is placed in a plastic food storage box, and water added such that the foam is damp at the surface.
(A piece of this material; is placed; in a plastic food storage box) (water; added; such that the foam is damp at the surface) Context(water added,List([70, 81))):(the foam; is damp; L:at the surface)
water added,List([70, 81))
A piece of this material water the foam
is placed added is damp
in a plastic food storage box
such that the foam is damp at the surface
L:at the surface