Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Gastro-esophageal sphincter sphincter is located at the stomach end of the esophagus and opens to allow the bolus to enter the stomach.

Answer: Which sphincter is located at the stomach end of the esophagus and opens to allow the bolus to enter the stomach?


Question: Process of desalinization helps provide cleaner water for agriculture.

Answer: Which process helps provide cleaner water for agriculture?


Question: You call the carbohydrate formed when two monosaccharides bond together disaccharide.

Answer:
What do you call the carbohydrate formed when two monosaccharides bond together?