JAVADOC_CONTENT -> JAVADOC_CONTENT [0:1]
|--LEADING_ASTERISK -> * [0:1]
|--TEXT ->  Usage of author block tag. [0:2]
|--NEWLINE -> \n [0:29]
|--LEADING_ASTERISK -> * [1:1]
|--TEXT ->   [1:2]
|--JAVADOC_BLOCK_TAG -> JAVADOC_BLOCK_TAG [1:3]
|   `--AUTHOR_BLOCK_TAG -> AUTHOR_BLOCK_TAG [1:3]
|       |--AT_SIGN -> @ [1:3]
|       |--TAG_NAME -> author [1:4]
|       `--DESCRIPTION -> DESCRIPTION [1:10]
|           `--TEXT ->  mohamed mahfouz [1:10]
|--NEWLINE -> \n [1:26]
|--LEADING_ASTERISK -> * [2:1]
|--TEXT ->   [2:2]
|--JAVADOC_BLOCK_TAG -> JAVADOC_BLOCK_TAG [2:3]
|   `--AUTHOR_BLOCK_TAG -> AUTHOR_BLOCK_TAG [2:3]
|       |--AT_SIGN -> @ [2:3]
|       |--TAG_NAME -> author [2:4]
|       `--DESCRIPTION -> DESCRIPTION [2:10]
|           |--TEXT ->  mohamed [2:10]
|           |--NEWLINE -> \n [2:18]
|           |--LEADING_ASTERISK -> * [3:1]
|           `--TEXT ->        mohamed mahfouz [3:2]
|--NEWLINE -> \n [3:24]
|--LEADING_ASTERISK -> * [4:1]
|--JAVADOC_BLOCK_TAG -> JAVADOC_BLOCK_TAG [4:2]
|   `--AUTHOR_BLOCK_TAG -> AUTHOR_BLOCK_TAG [4:2]
|       |--AT_SIGN -> @ [4:2]
|       |--TAG_NAME -> author [4:3]
|       `--DESCRIPTION -> DESCRIPTION [4:9]
|           `--TEXT ->  mohamed [4:9]
|--NEWLINE -> \n [4:17]
|--LEADING_ASTERISK -> * [5:1]
|--TEXT ->   [5:2]
`--JAVADOC_BLOCK_TAG -> JAVADOC_BLOCK_TAG [5:3]
    `--AUTHOR_BLOCK_TAG -> AUTHOR_BLOCK_TAG [5:3]
        |--AT_SIGN -> @ [5:3]
        `--TAG_NAME -> author [5:4]
