## Tag


How an answer was produced.


Usage

``` python
Tag
```


A and B are set by tools on their results. C is only ever derived: it is what a B becomes when its citation does not verify.

StrEnum rather than a plain `str, Enum` mixin, which formats as "Tag.A". The tag is written to the commons.provenance.tag span attribute, where R writes the bare letter and a mismatch would corrupt traces silently.


## Attributes

| Name | Description |
|----|----|
| [A](#A) |  |
| [B](#B) |  |
| [C](#C) |  |

------------------------------------------------------------------------


#### A


`A=``"A"`


------------------------------------------------------------------------


#### B


`B=``"B"`


------------------------------------------------------------------------


#### C


`C=``"C"`