Complex sentence: One can spot smaller shrines of Gauchito Gil on roadsides throughout Argentina due to the red color and the flags, many of which read "Thanks, Gauchito Gil" if the person's request is fulfilled.
Split into simpler sentences: One can spot smaller shrines of Gauchito Gil on roadsides throughout Argentina due to the red flags and the color red associated with it. Many of these flags read "Thanks, Gauchito Gil" if the person's request is fulfilled.