// Models.wrm - file containing class definitions,
// including fields, field labels, and connections between
// classes. We will discuss the structure of models 
// in detail.

// You can modify these models or add new ones.
// If you add comments, they have to be preceded
// by a "double-slash".

// Here is the definition for a bibliographic reference
// class called "Paper". The real models.wrm contains many
// class definitions besides this one.

?Paper  Reference       Title UNIQUE ?Text
                        Journal UNIQUE ?Journal XREF Paper
			Publisher UNIQUE Text
                        Unpublished
			Contained_in ?Paper XREF Contains
                        Year UNIQUE Text
                        Volume UNIQUE Text Text
                        Page  UNIQUE  Text UNIQUE Text
			Pages UNIQUE Text
			Medline_ID  UNIQUE Int
        Author ?Author XREF Paper
        Abstract ?LongText
	Type UNIQUE Text
	Contains ?Paper XREF Contained_in
        Image ?Image XREF Paper
        Refers_to	ANY
        Keyword ?Keyword
	Remark  Text