COMPILATION_UNIT -> COMPILATION_UNIT [2:0]
|--PACKAGE_DEF -> package [2:0]
|   |--ANNOTATIONS -> ANNOTATIONS [2:47]
|   |--DOT -> . [2:47]
|   |   |--DOT -> . [2:39]
|   |   |   |--DOT -> . [2:28]
|   |   |   |   |--DOT -> . [2:22]
|   |   |   |   |   |--DOT -> . [2:11]
|   |   |   |   |   |   |--IDENT -> com [2:8]
|   |   |   |   |   |   `--IDENT -> puppycrawl [2:12]
|   |   |   |   |   `--IDENT -> tools [2:23]
|   |   |   |   `--IDENT -> checkstyle [2:29]
|   |   |   `--IDENT -> grammar [2:40]
|   |   `--IDENT -> java15 [2:48]
|   `--SEMI -> ; [2:54]
|--CLASS_DEF -> CLASS_DEF [4:0]
|   |--MODIFIERS -> MODIFIERS [4:0]
|   |   |--LITERAL_PUBLIC -> public [4:0]
|   |   `--LITERAL_NON_SEALED -> non-sealed [4:7]
|   |--LITERAL_CLASS -> class [4:18]
|   |--IDENT -> InputTopLevelNonSealed [4:24]
|   |--EXTENDS_CLAUSE -> extends [4:47]
|   |   `--IDENT -> OtherClass [4:55]
|   `--OBJBLOCK -> OBJBLOCK [4:66]
|       |--LCURLY -> { [4:66]
|       `--RCURLY -> } [5:0]
`--CLASS_DEF -> CLASS_DEF [7:0]
    |--MODIFIERS -> MODIFIERS [7:0]
    |   `--LITERAL_SEALED -> sealed [7:0]
    |--LITERAL_CLASS -> class [7:7]
    |--IDENT -> OtherClass [7:13]
    `--OBJBLOCK -> OBJBLOCK [7:24]
        |--LCURLY -> { [7:24]
        `--RCURLY -> } [8:0]
