Question: In Irish and Scottish mythology, Uathach was the daughter of a warrior woman associated with which Isle ?
Sentence (from "Ferdiad"): He and Cúchulainn are equal in all martial feats, with two exceptions: the "Gáe Bulg", a barbed spear which Scáthach has taught only Cúchulainn to use; and Ferdiad's horny skin, which no weapon can pierce.
Relevant evidence: No