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Identify which of the following satisfies the
definition of a knowledge graph introduced in this chapter.
| a. |
A data graph defined among data items representing real-world entities. |
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| b. |
A schema graph defined among classes in a schema. |
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| c. |
A process graph representing the steps of a process, their order, and branching conditions.p |
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| d. |
A parse tree is an ordered, rooted tree that represents the syntactic structure of a string according to some context-free grammar. |
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| e. |
An entity relationship diagram shows the relationships of entity sets stored in a database. |
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