A date of a birth can be unknown.Logical formLearned from99 sentences. A time can be unknown.Logical formLearned from98 sentences. An identity may remain unknown.Logical formLearned from97 sentences. Identities can be unknown.Logical formLearned from97 sentences. A destination can be unknown.Logical formLearned from96 sentences. A reactivity can be unknown.Logical formLearned from92 sentences. A result can be unknown.Logical formLearned from89 sentences. A mechanism of action can be unknown.Logical formLearned from89 sentences. A father can be unknown.Logical formLearned from87 sentences. Conditions can be unknown.Logical formLearned from85 sentences. A place can be unknown.Logical formLearned from84 sentences. Numbers can be unknown.Logical formLearned from84 sentences. A group can be unknown.Logical formLearned from81 sentences. A value can be unknown.Logical formLearned from80 sentences. Names can be unknown.Logical formLearned from80 sentences.