question: OPTIONS:
- yes
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To achieve this, John reformed the English feudal contribution to his campaigns, creating a more flexible system under which only one knight in ten would actually be mobilised, but would be financially supported by the other nine; knights would serve for an indefinite period.
How many knights out of ten would be mobilised?

answer: yes

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Upali recited the vinaya.
the vinaya was recited by?

answer: yes

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This "subset" of great powers France, Germany, Japan, the United Kingdom and the United States consider maintaining a "state of peace" as desirable.
What great powers have maintained peace?

answer: yes

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Through the use of multidimensional scaling, psychologists can map out similar emotional experiences, which allows a visual depiction of the "emotional distance" between experiences.
What do psychologists use to visually map emotional experiences?

answer:
yes