NatOPs and the corresponding paraphrases.
| ≡ | Equivalent Spans |
| ⥮ | Evidence span contradicts the claim span |
| Claim span follows from evidence span | |
| (Insert) New information from evidence | |
| Incomplete Evidence | |
| Evidence span refutes claim span | |
| Claim span negated (Deletion) | |
| ⋕ | Unrelated claim span and evidence span |
| ⋕ | No related evidence found (Deletion) |
| ≡ | Equivalent Spans |
| ⥮ | Evidence span contradicts the claim span |
| Claim span follows from evidence span | |
| (Insert) New information from evidence | |
| Incomplete Evidence | |
| Evidence span refutes claim span | |
| Claim span negated (Deletion) | |
| ⋕ | Unrelated claim span and evidence span |
| ⋕ | No related evidence found (Deletion) |