Translation:The Ferengi sees that the Klingon eats gagh.
Do you mean that it wasn't accepted? It might be that qagh is singular and in that case Sop would need lu- as a prefix for they-it if Klingon were used as a plural. It really depends perhaps on qagh. Is it like soup where it would be odd for the food to take the plural? Something like how you can't say I eat soups. I am not sure. I am eager to hear what the advanced speakers have to say on this. You raised a very interesting topic.