Assertion: obsidian | /r/HasProperty | easy to work
Facets:
value: relatively
type: DEGREE
value: due to its glassy internal structure
type: CAUSE
Source sentences:
text: Due to its glassy internal structure, obsidian is relatively easy to work, as it breaks in very predictable and controlled ways via conchoidal fracturing.
text: Due to its glassy internal structure, obsidian is relatively easy to work, as it breaks in very predictable and controlled ways via conchoidal fracturing.