an Entity references as follows:
Scope note: This property identifies the E18 Physical Thing that is removed during an E80 Part Removal activity. Examples: - the opening of the coffin of Tut-Ankh-Amun (E80) removed The mummy of Tut-Ankh-Amun (E20,E22) In First Order Logic: P113(x,y) ⊃ E80(x) P113(x,y) ⊃ E18(y) P113(x,y) ⊃ P12(x,y)