 
 <prompt> Wetin dem use as solution? Based on di last question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```The tide-predicting machine wey Sir William Thomson invent for 1872 bin dey very useful for navigation for shallow waters. E use system of pulleys and wires to automatically calculate predicted tide levels for a set period for one particular location.``` 