The Czechs' language separated from other Slavic tongues into what would later be called Old Czech by the thirteenth century, a classification extending through the sixteenth century. Its use of cases differed from the modern language; although Old Czech did not yet have a vocative case or an animacy distinction, declension for its six cases and three genders rapidly became complicated (partially to differentiate homophones) and its declension patterns resembled those of Lithuanian (its Balto-Slavic cousin).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How did Old Czech's use of cases differ from modern usage?
Ah, so.. did not yet have a vocative case or an animacy distinction

Physician Valerius Cordus (15151544) authored a botanically and pharmacologically important herbal Historia Plantarum in 1544 and a pharmacopoeia of lasting importance, the Dispensatorium in 1546. Naturalist Conrad von Gesner (15161565) and herbalist John Gerard (1545c. 1611) published herbals covering the medicinal uses of plants. Naturalist Ulisse Aldrovandi (15221605) was considered the father of natural history, which included the study of plants. In 1665, using an early microscope, Polymath Robert Hooke discovered cells, a term he coined, in cork, and a short time later in living plant tissue.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who is considered the father of natural history?
Ah, so.. Ulisse Aldrovandi

Most major airports provide commercial outlets for products and services. Most of these companies, many of which are internationally known brands, are located within the departure areas. These include clothing boutiques and restaurants. Prices charged for items sold at these outlets are generally higher than those outside the airport. However, some airports now regulate costs to keep them comparable to "street prices". This term is misleading as prices often match the manufacturers' suggested retail price (MSRP) but are almost never discounted.[citation needed]
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What do restaurants do to keep prices low?
Ah, so..
unanswerable