Definition: 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.
Input: Passage: They have a very strong record in home games, with Georgios Karaiskakis Stadium being one of the most fearsome and strong home grounds in Europe. This has been proved by some long-standing unbeaten sequences, with Olympiacos staying unbeaten for 15 straight Champions League matches, with Manchester United being the first team to beat Olympiacos at home, in the latters fifth consecutive participation in the tournament with its new format. Furthermore, Olympiacos won 15 of their 19 UEFA Champions League games at home from 200910 UEFA Champions League to 201415 UEFA Champions League. They have an impressive record of wins at home in the European Cup/UEFA Champions League against the greatest clubs in European football, having beaten Real Madrid F.C. (21), Liverpool F.C. (10), Manchester United F.C. (20), AFC Ajax (20, 10), Juventus F.C. (10), Arsenal F.C. (10, 31, 21), FC Porto (10, 21, 10), S.L. Benfica (10, 10), Valencia CF (10), Borussia Dortmund (31), Atletico Madrid (32), Bayer 04 Leverkusen (62), AS Monaco FC (10), Celtic F.C. (20), Olympique Lyonnais (21), R.S.C. Anderlecht (30, 31), SV Werder Bremen (30) and Deportivo de La Coruna (10), among many others.
Output:
How many UEFA Champions League games at home did the Olympiacos lose during the stretch from 2009-2015?