Cypher queries the graph by looking at nodes, relationships, properties and query parameters. All values that are handled by Cypher have a distinct type. The supported types of values are:

Most types of values can be constructed in a query using literal expressions (see Section 8.2, “Expressions”). Special care must be taken when using NULL, as NULL is a value of every type (see Section 8.8, “Working with NULL”). Nodes, relationships, and paths are returned as a result of pattern matching.

Note that labels are not values but are a form of pattern syntax.