A defence may pertain-to a system.Logical formLearned from26 sentences. A defence can be chemical.Logical formLearned from26 sentences. Defences may undergo construction.Logical formLearned from26 sentences. A (defence force) may pertain-to a country.Logical formLearned from26 sentences. A defence may pertain-to a body.Logical formLearned from26 sentences. A defence can be formidable.Logical formLearned from25 sentences. Defences can be strong.Logical formLearned from25 sentences. A defence may pertain-to an empire.Logical formLearned from25 sentences. A (defence industry complex) may pertain-to a country.Logical formLearned from25 sentences. A (missile defence programme) may pertain-to a country.Logical formLearned from25 sentences. A defence may pertain-to a continent.Logical formLearned from25 sentences. A defence can be imperial.Logical formLearned from25 sentences. A (defence system) may pertain-to a body.Logical formLearned from25 sentences. A defence can be constituted-of-or-filled-with hardship.Logical formLearned from25 sentences. A defence can be solid.Logical formLearned from25 sentences.