 It seems clear that this discourse has no reading on which the second sentence means that Sarah beats every donkey she owns, even if we imagine that the utterer of the discourse had no particular donkey in mind when she uttered the first sentence. Suppose, for example, that the Homeland Security and Donkey Care Bureau comes to town and wants information about local donkey ownership and beating. The speaker tells them that she really don’t know how many donkeys anybody owns, and has never seen or had any other contact with particular local donkeys. But she tells them that she has received some information from reliable sources and it has been deemed “credible”. Asked what she has heard, she responds: “Sarah owns a donkey and she beats it”.