PACKAGE_DEF -> package [1:0]
|--ANNOTATIONS -> ANNOTATIONS [1:39]
|--DOT -> . [1:39]
|   |--DOT -> . [1:28]
|   |   |--DOT -> . [1:22]
|   |   |   |--DOT -> . [1:11]
|   |   |   |   |--IDENT -> com [1:8]
|   |   |   |   `--IDENT -> puppycrawl [1:12]
|   |   |   `--IDENT -> tools [1:23]
|   |   `--IDENT -> checkstyle [1:29]
|   `--IDENT -> grammars [1:40]
`--SEMI -> ; [1:48]
ENUM_DEF -> ENUM_DEF [3:0]
|--MODIFIERS -> MODIFIERS [3:0]
|   `--LITERAL_PUBLIC -> public [3:0]
|--ENUM -> enum [3:7]
|--IDENT -> InputRegressionJavaEnum2 [3:12]
`--OBJBLOCK -> OBJBLOCK [3:37]
    |--LCURLY -> { [3:37]
    `--RCURLY -> } [4:0]