<prompt> Translate the following text to EnglishWazo la mlinzi wa kuokoa uhai wa kitaalamu halijulikani katika Ibiza na Formentera vilevile; baa fulani za pwani huhifadhi vifaa vya matibabu ya kwanza.  <response>: The concept of a professional lifeguard is unknown on Ibiza and Formentera alike; some beach bars do keep first-aid supplies. 