On the anaphor–agreement effect *

The following examples illustrate the well-known fact that a reflexive or reciprocal (henceforth an anaphor) must have its antecedent in the same simple clause. If the antecedent is in a higher clause, the structure is ill-formed: 1

Bill thinks that they like each other.

(2) *

They think that Bill likes each other.

*

Theythink that each other please Bill.