Boundaries can be imaginary.Logical formLearned from57 sentences. Boundaries can be irregular.Logical formLearned from57 sentences. Boundaries can be porous.Logical formLearned from57 sentences. Boundaries may change.Logical formLearned from57 sentences. A boundary can be coastal.Logical formLearned from56 sentences. Boundaries can be revised.Logical formLearned from56 sentences. A (boundary layer) can be thermal.Logical formLearned from56 sentences. A boundary may pertain-to a forest.Logical formLearned from55 sentences. Boundaries may be established.Logical formLearned from55 sentences. Boundaries can be known.Logical formLearned from55 sentences. Some boundaries can be from some balls.Logical formLearned from55 sentences. A knock may include some boundaries.Logical formLearned from55 sentences. An international boundary can be between a country.Logical formLearned from55 sentences. Boundaries can be regulatory.Logical formLearned from54 sentences. Boundaries may pertain-to a classroom.Logical formLearned from54 sentences.