Assertion: terrestrial planet's material | /r/AtLocation | possible form
Facets:
value: below that depth
type: OTHER
value: for materials of their overall composition
type: PURPOSE
Source sentences:
text: Below that depth, however, the materials are already in the densest possible form for materials of their overall composition, and regardless of how great a weight compresses them they will not change to still denser structures (or at least that is the conclusion drawn from laboratory experiments involving such materials).