A relative clause is an attributive clause that qualifies a nominal or a pronominal head, and includes an overt or covert pronominal element referring to the head. The pronominal element referring to the head serves as a link between the head and the relative clause. Since an attributive relative clause is endocentric, namely, it always contains an overt or covert pronoun, it forms, together with the lexical attributive content, an attributive syntactic relation. When a relative clause is syndet…