A compound can be empty.Logical formLearned from34 sentences. A compound can be underground.Logical formLearned from34 sentences. A compound can be psychoactive.Logical formLearned from34 sentences. Some siege can be at a compound.Logical formLearned from34 sentences. Traces can be constituted-of-or-filled-with compounds.Logical formLearned from34 sentences. Attacks can be on compounds.Logical formLearned from34 sentences. (Palace compounds) can be presidential.Logical formLearned from34 sentences. Compounds may be found.Logical formLearned from34 sentences. A (government compound) may undergo a siege.Logical formLearned from34 sentences. A compound may pertain-to an embassy.Logical formLearned from34 sentences. A (headquarters compound) may pertain-to leader.Logical formLearned from33 sentences. Compounds may undergo concentration.Logical formLearned from33 sentences. A compound may pertain-to a school.Logical formLearned from33 sentences. A compound can be in a US-city.Logical formLearned from33 sentences. A library can be constituted-of-or-filled-with compounds.Logical formLearned from33 sentences.