Assertion: column's row | /r/HasAspect | unique key
Facets:
Source sentences:
text: Each row has a unique key called Row Key, which is a unique identifier for that row.
text: Each row has a unique key, which is a unique identifier for that row.
text: Each row has a unique key, which is a unique identifier for that row.
text: Each row has a unique key called Row Key, which is a unique identifier for that row.