Higher levels may pertain-to a hierarchy.Logical formLearned from18 sentences. A hierarchy can be clear.Logical formLearned from18 sentences. A hierarchy may undergo a development.Logical formLearned from18 sentences. A position can be within a hierarchy.Logical formLearned from18 sentences. Hierarchy may be splited.Logical formLearned from18 sentences. A hierarchy may pertain-to vivacity.Logical formLearned from18 sentences. A hierarchy may pertain-to a martial-art.Logical formLearned from18 sentences. A hierarchy can be centralized.Logical formLearned from18 sentences. A hierarchy can be invisible.Logical formLearned from18 sentences. A member may pertain-to a (party hierarchy).Logical formLearned from18 sentences. A hierarchy may pertain-to a language.Logical formLearned from18 sentences. Position can be in a hierarchy.Logical formLearned from18 sentences. A hierarchy can be constituted-of-or-filled-with files.Logical formLearned from18 sentences. A hierarchy may pertain-to a defense-department.Logical formLearned from18 sentences. A hierarchy may pertain-to a legislature.Logical formLearned from18 sentences.