Cages may pertain-to a zoo.Logical formLearned from6 sentences. A volunteer can be in a (zoo project).Logical formLearned from6 sentences. Problems may pertain-to a zoo.Logical formLearned from6 sentences. A male can be in a zoo.Logical formLearned from6 sentences. Some boys may walk in a zoo.Logical formLearned from6 sentences. Persons may be connected with a zoo.Logical formLearned from6 sentences. A visit can be to a zoo.Logical formLearned from6 sentences. A zoo can be empty.Logical formLearned from6 sentences. A gig can be at zoo.Logical formLearned from6 sentences. A zoo may pertain-to a state.Logical formLearned from6 sentences. Visitors can be to zoo.Logical formLearned from6 sentences. Some penguins can be in a zoo.Logical formLearned from6 sentences. Zoos can be in major cities of a world-city.Logical formLearned from6 sentences. A zoo can be a walk.Logical formLearned from6 sentences. (Color zoo) can be large in size.Logical formLearned from6 sentences.