Sociolinguistics researchers (and/or linguistic anthropologists) may work to preserve dying languages, study the relationships between languages, both extant and extinct, or act as consultants for programs and policies in education or other sectors (e.g., bilingual education, language policy, language rights, etc.). Computational linguists work on projects such as text-to-speech or speech-to-text applications, voice recognition, automatic translation, information retrieval, e-learning, etc.