 Rather, (27) is the yes/no question corresponding to ‘The boy who lost was kept crying’, which has an unexpected meaning. So we want some account of why (27) cannot have the interpretation corresponding to (26). But this “negative fact” concerning (27) is precisely what one would expect if ‘was’ cannot be displaced from its position in (26), as in the following logically possible but grammatically illicit structure: *Wasi {[the [boy [who [( _ )i lost]]]] [kept crying]}.