A profession can be hard.Logical formLearned from40 sentences. A pick can be hard.Logical formLearned from40 sentences. Changes can be hard.Logical formLearned from40 sentences. A hard top can be retractable.Logical formLearned from40 sentences. A hard hat can be red.Logical formLearned from40 sentences. An issue can be hard.Logical formLearned from40 sentences. Stories can be hard.Logical formLearned from40 sentences. Faces can be hard.Logical formLearned from40 sentences. A person may have hard times.Logical formLearned from40 sentences. Hard courts can be in a US-city.Logical formLearned from40 sentences. Persons may be tried hard.Logical formLearned from40 sentences. A collision can be hard.Logical formLearned from40 sentences. Changes can be hard.Logical formLearned from39 sentences. Effects can be hard.Logical formLearned from39 sentences. A (budget constraint) can be hard.Logical formLearned from39 sentences.