Airstrikes can be on a (cave complex).Logical formLearned from8 sentences. Presence can be at a (guerrilla cave complex).Logical formLearned from8 sentences. Sampling can be throughout a complex.Logical formLearned from8 sentences. A grin can be at a (training complex).Logical formLearned from8 sentences. A flight can be to an (orbiting complex).Logical formLearned from8 sentences. A plant can be in a complex.Logical formLearned from8 sentences. A complex can be constituted-of-or-filled-with hangars.Logical formLearned from8 sentences. A complex may be crowded with persons.Logical formLearned from8 sentences. Entry can be to a complex.Logical formLearned from8 sentences. A person may design a complex.Logical formLearned from8 sentences. A complex can be scenic.Logical formLearned from8 sentences. A (tennis complex) may pertain-to a world-city.Logical formLearned from8 sentences. A (government complex) may be perched on a grassy hill.Logical formLearned from8 sentences. A complex can be undamaged.Logical formLearned from8 sentences. A person may have complexes.Logical formLearned from8 sentences.