Areas can be productive.Logical formLearned from543 sentences. A dialogue can be productive.Logical formLearned from531 sentences. Relationships can be productive.Logical formLearned from529 sentences. Discussions can be productive.Logical formLearned from518 sentences. A period can be productive.Logical formLearned from496 sentences. A discussion can be productive.Logical formLearned from494 sentences. A meeting can be productive.Logical formLearned from484 sentences. A player can be productive.Logical formLearned from469 sentences. An economy can be productive.Logical formLearned from445 sentences. Potential can be productive.Logical formLearned from428 sentences. A weekend can be productive.Logical formLearned from408 sentences. A career can be productive.Logical formLearned from405 sentences. Investments can be productive.Logical formLearned from405 sentences. A week can be productive.Logical formLearned from389 sentences. A time can be productive.Logical formLearned from388 sentences.