context: The Rhine emerges from Lake Constance, flows generally westward, as the Hochrhein, passes the Rhine Falls, and is joined by its major tributary, the river Aare. The Aare more than doubles the Rhine's water discharge, to an average of nearly 1,000 m3/s (35,000 cu ft/s), and provides more than a fifth of the discharge at the Dutch border. The Aare also contains the waters from the 4,274 m (14,022 ft) summit of Finsteraarhorn, the highest point of the Rhine basin. The Rhine roughly forms the German-Swiss border from Lake Constance with the exceptions of the canton of Schaffhausen and parts of the cantons of Zürich and Basel-Stadt, until it turns north at the so-called Rhine knee at Basel, leaving Switzerland.
question: What is the major tributary for the Rhine? 
answers: Aare Aare river Aare
content_span_normalized_text: the aare also contains the waters from the four thousand, two hundred seventy-four m fourteen thousand twenty-two ft summit of finsteraarhorn, the highest point of the rhine basin.
question_normalized_text: what is the major tributary for the rhine?
context_asr: THE RINE EMERGES FROM LAKE CONSTANCE FLOWS GENERALLY WESTWARD AS THE HORKIN PASSES THE RIN FALLS AND IS JOINED BY ITS MAJOR TRIBUTARY THE RIVER ARE THE AR MORE THAN DOUBLES THE RINS WATER DISCHARGE TO AN AVERAGE OF NEARLY ONE THOUSAND M THREE OVER ES THIRTY FIVE THOUSAND CUBIC FEET OVER ES AND PROVIDES MORE THAN A FIFTH OF THE DISCHARGE AT THE DUTCH BORDER THE ARE ALSO CONTAINS THE WATERS FROM THE FOUR THOUSAND TWO HUNDRED SEVENTY FOUR M FOURTEEN THOUSAND TWENTY TWO FEET SUMMIT OF FISTER AR HORN THE HIST POINT OF THE RIN BASIN THE RINE ROUGHLY FORMS THE GERMAN SWISS BORDER FROM LAKE CONSTANCE WITH THE EXCEPTIONS OF THE CANTON OF SHOF HAUSEN AND PARTS OF THE CANTONS OF SIRIK AND BASLSTAT UNTIL IT TURNS NORTH AT THE SO CALLED RINE MAD AT BASEL LEAVING SWITZERLAND 
question_asr: WHAT IS THE MAJOR TRIBUTARY FOR THE RIN 