- DOCUMENT@0..22
    - OPERATION_DEFINITION@0..22
        - OPERATION_TYPE@0..5
            - query_KW@0..5 "query"
        - WHITESPACE@5..6 " "
        - NAME@6..8
            - IDENT@6..8 "Op"
        - VARIABLE_DEFINITIONS@8..10
            - L_PAREN@8..9 "("
            - R_PAREN@9..10 ")"
        - WHITESPACE@10..11 " "
        - SELECTION_SET@11..22
            - L_CURLY@11..12 "{"
            - WHITESPACE@12..15 "\n  "
            - FIELD@15..20
                - NAME@15..20
                    - IDENT@15..20 "field"
            - WHITESPACE@20..21 "\n"
            - R_CURLY@21..22 "}"
- ERROR@9:10 "expected a Variable Definition" )
recursion limit: 500, high: 1