In (13) we have a sentence with a non-standard constituent: (13) Leo hates Sue and Bill himself One observes that in the corresponding sentences in Japanese and in Polish preferably co-referential pronouns should be used at the place of himself.
in Polish (14a) is grammatical and the corresponding sentence (14b) with the pronoun sie is not: (14a) Leo nienawidzi Sue a Bill siebie (14b) *Leo nienawidzi Sue a Bill sie The following examples illustrate the constraint on possible conjunctions.