Question: What river is the namesake of the city that sports club Boca Río Gallegos is located in?
Sentence (from "Río Gallegos, Santa Cruz"): Located in the department of Guer Aike, it has a population of about 98,000, according to the 2010 census , a 24% increase from the 79,000 in the 2001 census .
Relevant evidence: No