"יש למכונה הזאת תועלת?"
Translation:Does this machine have a benefit?
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In hebrew words have roots. Usually of three letters. It is not directly evident (more on that latet) but the root of "תועלת" is "י,ע,ל" that also generate words like יעילות, התיעלות, מתיעלים. The point made is that the order of the letters of the root stays the same in all the words derived from that root. So the 'ע' is always to the right of the 'ל' in this root. The readon why there is no 'י' in תועלת although it is part of the root comes from pronounciation comfort that over the years removed it.