 This, however, is by no means to be understood as implying that there is no good sense of ‘amount of information’ in which the amount of information of these sentences will not be zero at all, and for some people, might even be rather high. To avoid ambiguities, we shall use the adjective ‘semantic’ to differentiate both the presystematic sense of ‘information’ in which we are interested at the moment and their systematic explicata from other senses (such as “amount of psychological information for the person P”) and their explicata.