You will be given a definition of a task first, then some input of the task.
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.

Passage: The Byzantine civil war of 1373-1379 was a military conflict fought in the Byzantine Empire between Byzantine Emperor John V Palaiologos and his son, Andronikos IV Palaiologos, also growing into an Ottoman civil war as well, when Savc Bey, the son of Ottoman Emperor Murad I joined Andronikos in a joint rebellion against their fathers. It began when Andronikos sought to overthrow his father in 1373. Although he failed, with Genoese aid, Andronikos was eventually able to overthrow and imprison John V in 1376. In 1379 however, John V escaped, and with Ottoman help, regained his throne. The civil war further weakened the declining Byzantine Empire, which had already suffered several devastating civil wars earlier in the century. The major beneficiary of the war were the Ottomans, whose vassals the Byzantines had effectively become.
Output:
Adronikos and Savci Bey both led a joint rebellion against Emporer Murad I and what other leader?