An (air cleaner) can be passive.Logical formLearned from2 sentences. A (docking target) can be passive.Logical formLearned from2 sentences. A club can be passive.Logical formLearned from2 sentences. A complainer can be passive.Logical formLearned from2 sentences. Defenders can be passive.Logical formLearned from2 sentences. A negligence can be passive.Logical formLearned from2 sentences. Waters can be passive.Logical formLearned from2 sentences. Passive smoking can be a problem.Logical formLearned from2 sentences. An (attorney general) can be passive.Logical formLearned from2 sentences. A chorus can be passive.Logical formLearned from2 sentences. Jumpers can be passive.Logical formLearned from2 sentences. Managers can be passive.Logical formLearned from2 sentences. A (firefighter father) can be passive.Logical formLearned from2 sentences. Digital-video players can be passive.Logical formLearned from2 sentences. A study can be on effects of passive smoke.Logical formLearned from2 sentences.