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 | 1 | initial version |
These are edge labels. Each edge is described by a 3-element tuple $(s,t,l)$ where $s$ and $t$ are start/end vertices, and $l$ in a label. None means that there is no label.
| | 1 | initial version |
These are edge labels. Each edge is described by a 3-element tuple $(s,t,l)$ where $s$ and $t$ are start/end vertices, and $l$ in a label. None means that there is no label.
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