Assertion: key | /r/HasProperty | unique
Facets:
value: for some item of data
type: TRANSITIVE-OBJECT
value: at the most basic definition
type: OTHER
value: within that entity
type: LOCATION
Source sentences:
text: Keys that are within their originating entity are unique within that entity.
text: At the most basic definition, "a key is a unique identifier", so unique key is a pleonasm.
text: Each key is unique and created via algorithm to make sure it is unpredictable.
text: A key-value pair (KVP) is a set of two linked data items: a key, which is a unique identifier for some item of data, and the value, which is either the data that is identified or a pointer to the location of that data.