- DOCUMENT@0..25
    - OPERATION_DEFINITION@0..25
        - SELECTION_SET@0..25
            - L_CURLY@0..1 "{"
            - WHITESPACE@1..6 "\n    "
            - FIELD@6..9
                - NAME@6..9
                    - IDENT@6..9 "pet"
            - WHITESPACE@9..14 "\n    "
            - FIELD@14..23
                - NAME@14..23
                    - IDENT@14..23 "faveSnack"
            - WHITESPACE@23..24 "\n"
            - R_CURLY@24..25 "}"
recursion limit: 500, high: 1