Жители Санкт-Петербурга устроили «крысогон»17:52
Мощный удар Израиля по Ирану попал на видео09:41
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Replay started with initial input: {
英國超市將巧克力鎖進防盜盒阻止「訂單式」偷竊
This formula is satisfiable because if we set to b to true and a to false, then the whole formula is true. All other assignments make the formula false, but it doesn't change that the formula is satisfiable as long as there is at least one assignment makes the formula true.