A (batting style) can be unknown.Logical formLearned from122 sentences. Some reason can be unknown to a person.Logical formLearned from118 sentences. A cause of an explosion can be unknown.Logical formLearned from116 sentences. An outcome can be unknown.Logical formLearned from115 sentences. A batting can be unknown.Logical formLearned from111 sentences. Causes can be unknown.Logical formLearned from110 sentences. Mechanisms may remain unknown.Logical formLearned from109 sentences. The future can be unknown.Logical formLearned from109 sentences. A real name can be unknown.Logical formLearned from108 sentences. An ultimate fate can be unknown.Logical formLearned from107 sentences. Details can be unknown.Logical formLearned from105 sentences. A date of death can be unknown.Logical formLearned from104 sentences. A purpose can be unknown.Logical formLearned from104 sentences. A toll can be unknown.Logical formLearned from103 sentences. A mechanism may remain unknown.Logical formLearned from102 sentences.