As these authors observe, the sentences in (1) and (2) are similar in both form and meaning. The truncated clefts in (1) look like the clefts in (2) minus the cleft clause, and in the right contexts, each of the sentences in (1) can be used with the meaning of the corresponding sentence in (2). Following a question like Who went to Hamburg?, (1b) can be used to convey what (2b) conveys, and fol...