Sentence:  Thus, in a sentence such as:/  (113)      John considers [<sub>S</sub> "Fred" to be too sure of "himself"]/  the italicised Reflexive "himself" can only be <WSD>construed</WSD> with "Fred", not with "John": this follows from our assumption that non-subject Reflexives must have an antecedent within their own S. Notice, however, that in a sentence such as:/  (114)      "John" seems to me [<sub>S</sub> — to have perjured "himself"]/  "himself" must be <WSD>construed</WSD> with "John". 
Meaning of the word marked with <WSD> tags:  To analyze the grammatical structure of a clause or sentence; to parse.