A sphere can be hollow.Logical formLearned from233 sentences. A surface may pertain-to a sphere.Logical formLearned from224 sentences. A sphere can be religious.Logical formLearned from224 sentences. Music may pertain-to spheres.Logical formLearned from221 sentences. A center may pertain-to a sphere.Logical formLearned from217 sentences. A sphere can be personal.Logical formLearned from160 sentences. A sphere can be spiritual.Logical formLearned from155 sentences. Spheres may pertain-to persons.Logical formLearned from152 sentences. A sphere can be constituted-of-or-filled-with activity.Logical formLearned from141 sentences. Spheres can be hollow.Logical formLearned from129 sentences. Spheres can be concentric.Logical formLearned from126 sentences. A radius may pertain-to a sphere.Logical formLearned from116 sentences. Some spheres can be constituted-of-or-filled-with society.Logical formLearned from113 sentences. Cooperation can be in a sphere.Logical formLearned from112 sentences. Spheres can be constituted-of-or-filled-with activity.Logical formLearned from111 sentences.