This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.
Q: Passage: However, few of the treaty provisions were ever fulfilled. The Tatar raids resumed in 1618 , as commanders of the Dobruja and Budjak Hordes left Iskender's camp during talks. At first, Zokiewki could not divide forces and Tatars plundered unopposed, but he met the Iskender Pasha's force near Kamianets-Podilskyi . On September 28, 1618, he drove it back while enduring heavy losses. In 1617 and 1619 Zokiewski forced Cossacks to sign a new agreements . Boats were to be burnt and raids were forbidden. In exchange, the Cossack register was expanded, and the annual subsidy to Cossacks from the Crown was increased. However, Cossack raids did not cease, especially as they were encouraged by Muscovy. In July 1618, after many warnings to the Commonwealth, the young and ambitious sultan Osman II send a letter to king Sigismund III with the threats of a new war and the burning of Krakow. Since the Ottomans were involved in large-scale war with Persia, this was no more than a warning at the time. However, Osman planned for a war against the Commonwealth, in order to compensate for the heavy losses sustained against Persia, where, in the Ottoman-Persian Wars of 1603-1611 and 1617-1618/1619, the Ottoman Empire lost the Caucasus.
A:
How many combined years were the Otoman-Persian Wars?