One of God's own prototypes -- some kind of high-powered mutant never even considered for mass production. Too weird to live, and too rare to die.
Dwarf Fortress is truly the game of all time.
These are all distinct skills. How in gods name am i meant to intuit the difference between Stone Carving and Stone Engraving
Come to think of it, asking a dwarf a question like that is liable to attract some strange looks. In dwarf culture you'd have to be a special kind of idiot to not know the difference between carving and engraving, after all. This is just Dwarf Fortress providing the authentic culture shock experience