A commitment can be abstract.Logical formLearned from23 sentences. Objects can be abstract.Logical formLearned from23 sentences. Sessions can be abstract.Logical formLearned from23 sentences. Attributes can be abstract.Logical formLearned from23 sentences. An and/or can be abstract.Logical formLearned from23 sentences. A machine can be abstract.Logical formLearned from23 sentences. A map can be abstract.Logical formLearned from23 sentences. A ballet can be abstract.Logical formLearned from23 sentences. An artist can be abstract.Logical formLearned from23 sentences. Creations can be abstract.Logical formLearned from23 sentences. A mural can be abstract.Logical formLearned from23 sentences. A concrete can be abstract.Logical formLearned from23 sentences. Quantities can be abstract.Logical formLearned from23 sentences. A plan can be abstract.Logical formLearned from23 sentences. A search can be abstract.Logical formLearned from23 sentences.