,| , | ,.” That seems to restrict to those tags only. But the box visual uses , , etc. Perhaps we can embed that box using only allowed tags? But the box visual structure includes and . Maybe we can replicate using and etc? But the instruction says “Crie exatamente a estrutura HTML abaixo (Box cinza com borda esquerda chamativa).” So we must output that exact structure, which includes and . That conflicts with the rule that we can only use certain tags. However the higher-level instruction says “Escreva EXCLUSIVAMENTE utilizando tags HTML limpas:,
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