Suppose The local library is hosting a book sale to raise funds for new books and programs. Shelves are filled with a wide selection of genres, from mystery novels to science fiction classics. Patrons are browsing through the aisles, looking for hidden literary gems. Sarah, a book lover, is volunteering at the checkout counter during the sale:
Can we infer that "Sarah is the author of one of the books being sold."? Yes, no, or maybe?