A smile can be fleeting.Logical formLearned from125 sentences. An appearance can be fleeting.Logical formLearned from123 sentences. A sense can be fleeting.Logical formLearned from120 sentences. A feeling can be fleeting.Logical formLearned from118 sentences. A chance can be fleeting.Logical formLearned from105 sentences. A fame can be fleeting.Logical formLearned from104 sentences. Fame can be fleeting.Logical formLearned from99 sentences. Seconds can be fleeting.Logical formLearned from96 sentences. Appearances can be fleeting.Logical formLearned from93 sentences. Pleasures can be fleeting.Logical formLearned from93 sentences. An instant can be fleeting.Logical formLearned from93 sentences. An opportunity can be fleeting.Logical formLearned from92 sentences. A life can be fleeting.Logical formLearned from91 sentences. A hope can be fleeting.Logical formLearned from88 sentences. Glances can be fleeting.Logical formLearned from85 sentences.