A mastery may vanish.Logical formLearned from2 sentences. A phase can be during transition to mastery.Logical formLearned from2 sentences. Transition can be to mastery.Logical formLearned from2 sentences. A mastery can be constituted-of-or-filled-with melody.Logical formLearned from2 sentences. Mastery may pertain-to a jargon.Logical formLearned from2 sentences. Mastery of a jargon may confer membership.Logical formLearned from2 sentences. A mastery of literature can be impressive.Logical formLearned from2 sentences. A mastery can be an obsolescence.Logical formLearned from2 sentences. A mastery may pertain-to today.Logical formLearned from2 sentences. A student may demonstrate mastery of skills.Logical formLearned from2 sentences. A student may attain mastery of a program of study.Logical formLearned from2 sentences. An exam may demonstrate a mastery of a material.Logical formLearned from2 sentences. Persons may be involved in a mastery of some dimension of discourse.Logical formLearned from2 sentences. A reputation may rest on a mastery of verse.Logical formLearned from2 sentences. A mastery may pertain-to a continent.Logical formLearned from2 sentences.