context: Lake Constance consists of three bodies of water: the Obersee ("upper lake"), the Untersee ("lower lake"), and a connecting stretch of the Rhine, called the Seerhein ("Lake Rhine"). The lake is situated in Germany, Switzerland and Austria near the Alps. Specifically, its shorelines lie in the German states of Bavaria and Baden-Württemberg, the Austrian state of Vorarlberg, and the Swiss cantons of Thurgau and St. Gallen. The Rhine flows into it from the south following the Swiss-Austrian border. It is located at approximately 47°39′N 9°19′E﻿ / ﻿47.650°N 9.317°E﻿ / 47.650; 9.317.
question: Which border does the Rhine flow from the south?
answers: Swiss-Austrian border Swiss-Austrian Swiss-Austrian border
content_span_normalized_text: the rhine flows into it from the south following the swiss-austrian border.
question_normalized_text: which border does the rhine flow from the south?
context_asr: LAKE CONSTANCE CONSISTS OF THREE BODIES OF WATER THE OVER SE UPPER LAKE THE UNTER SE LOWER LAKE AND A CONNECTING STRETCH OF THE RINE CALLED THE S HIN LAKE RIN THE LAKE IS SITUATED IN GERMANY SWITZERLAND AND AUSTRIA NEAR THE ALPS SPECIFICALLY ITS SHORE LINES LIE IN THE GERMAN STATES OF BARVARIA AND BEN WETEMBERG THE AUSTRIAN STATE OF BOVARIBERG AND THE SWISS CANTONS OF LURGOW AND SAINT GOLIN THE RINE FLOWS INTO IT FROM THE SOUTH FOLLOWING THE SWISS AUSTRIAN BORDER IT IS LOCATED AT APPROXIMATELY FORTY SEVEN DEGREES THIRTEEN NINE NINE DEG NINETEEN A FORTY SEVEN SIX HUNDRED FIFTY DAGER NINE THREE HUNDRED SEVENTEEN DEGE FORTY SEVEN SIX HUNDRED FIFTY NINE THREE HUNDRED SEVENTEEN 
question_asr: WHICH BORDER DOES THE RINE FLOW FROM THE SOUTH 