Are You suprised ?

The Gap-Sentence Link is a type of sentence connection, which is not immediately obvious and it requires a certain mental effort to grasp the interrelation between the parts, i.e. to bridge the semantic gap.

E.g. She and that fellow ought to be sufferers, and they were in Italy. (Galsworthy)
In this example the 2^nd part, which is hooked by ‘and’, seems to be unmotivated, and thus the whole sentence seems to be illogical. After a careful semantic analysis it becomes clear that the exact logical variant of the utterance would be: “Those who ought to suffer were enjoying themselves in Italy” (where well-to-do English people go for holidays).