0MBEGIN-ENTRY-ROOT1
ROOT1 TEXT
END-ENTRY

1M BEGIN-ENTRY- SUBTOPIC1
SUBTOPIC1 TEXT
END-ENTRY

2IBEGIN-ENTRY- SUBTOPIC4
SUBTOPIC4 TEXT
END-ENTRY

1I BEGIN-ENTRY-SUBTOPIC2
SUBTOPIC2 TEXT
$$1I BEGIN-ENTRY-SUBTOPIC2
$$END-ENTRY
END-ENTRY

0IBEGIN-ENTRY-ROOT2
ROOT2 TEXT
END-ENTRY

-1MBEGIN-ENTRY-ROOT3
ROOT3 TEXT
END-ENTRY

0IBEGIN-ENTRY-SUBTOPIC3
SUBTOPIC3 TEXT
END-ENTRY