A trek may pertain-to a male.Logical formLearned from525 sentences. A trek can be annual.Logical formLearned from163 sentences. A trek can be arduous.Logical formLearned from162 sentences. A trek may pertain-to a female.Logical formLearned from135 sentences. A trek may pertain-to persons.Logical formLearned from100 sentences. Treks may pertain-to a person.Logical formLearned from97 sentences. Treks may pertain-to a male.Logical formLearned from92 sentences. A trek can be perilous.Logical formLearned from84 sentences. A trek may pertain-to a person.Logical formLearned from77 sentences. Treks may pertain-to persons.Logical formLearned from75 sentences. A trek can be dangerous.Logical formLearned from66 sentences. Treks may pertain-to a company.Logical formLearned from53 sentences. A trek can be upward.Logical formLearned from50 sentences. Treks may pertain-to a country.Logical formLearned from46 sentences. A trek can be daily.Logical formLearned from45 sentences.