There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is:
香港外傭的困境：一旦懷孕就會「很恐懼」2026年1月6日
，这一点在搜狗输入法2026中也有详细论述
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"All I Wanted" by Paramore (Episode 3)