Calculations can be abstract.Logical formLearned from12 sentences. Presence can be abstract.Logical formLearned from12 sentences. A (film collection) can be abstract.Logical formLearned from12 sentences. A signature can be abstract.Logical formLearned from12 sentences. A cloud can be abstract.Logical formLearned from12 sentences. A period can be abstract.Logical formLearned from12 sentences. A play can be abstract.Logical formLearned from12 sentences. An approach can be abstract.Logical formLearned from12 sentences. An impression can be abstract.Logical formLearned from12 sentences. Meditations can be abstract.Logical formLearned from12 sentences. A territory can be abstract.Logical formLearned from12 sentences. Ethics can be abstract.Logical formLearned from12 sentences. Worth can be abstract.Logical formLearned from12 sentences. (Interpretation techniques) can be abstract.Logical formLearned from12 sentences. A (complexity theory) can be abstract.Logical formLearned from12 sentences.