This paper presents an experimental study on the interpretation of the complement anaphora the others in inter-sentential discourse. It aims to offer an answer to the following two empirical questions. First, how complement anaphora denote the “complement set”, a set of referents that includes those referents not denoted by the matching anaphoric antecedent. Second, what are the exact interpretation principles that govern the anaphoric potential of complement anaphora. The answers to these two questions shed light on how complement anaphora fit into a broader theory of anaphora resolution, and what is the most accurate logical and psychological model of this aspect of grammar.