In this paper, we describe the creation of rules for generating Chinese zero anaphors through a sequence of experiments in a stepwise enhanced manner. In the exper- iments, we basically examined the occur- rence of zero anaphors in a real text and the ones generated by the algorithms employing the rules, assuming the same semantic and discourse structures as the text. The fac- tors of locality, syntactic constraints, dis- course structure and salience of objects were considered in the rules. The results of the experiment show that 93% of the zero anaphors in the text can be correctly gener- ated by an algorithm using a rule involving all the above factors.

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