A link can be upward.Logical formLearned from5 sentences. A (learning curve) can be upward.Logical formLearned from5 sentences. A rolling can be upward.Logical formLearned from5 sentences. Upward mobility may undergo aspirations.Logical formLearned from5 sentences. An edge can be upward.Logical formLearned from5 sentences. A vector can be upward.Logical formLearned from5 sentences. A theorem can be upward.Logical formLearned from5 sentences. A compression can be upward.Logical formLearned from5 sentences. Second-class citizens can be without upward social mobility.Logical formLearned from5 sentences. (Population trends) can be upward.Logical formLearned from5 sentences. A region can be upward.Logical formLearned from5 sentences. A thinking can be upward.Logical formLearned from5 sentences. A reflection can be upward.Logical formLearned from5 sentences. Climbs can be upward.Logical formLearned from5 sentences. Scales can be upward.Logical formLearned from5 sentences.