Question: Which of the founder of Basque artistic group was a Spanish Basque sculptor?
Sentence (from "Gaur (artistic group)"): The avant-guard group, based in Gipuzkoa, Spain, provided the springboard for a wide Basque artistic movement with close links to influential social, cultural and political agents in the Basque Country opposed to Franco's dictatorship during the 70s and early 80s.
Relevant evidence: No