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:
第五十九条 涉及军工、军事等国防领域的原子能研究、开发和利用活动的管理办法，由国务院、中央军事委员会依据本法规定的原则另行制定。
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