Task: Question Answering
Input (English): Process:  -The carafe is filled with water -The water is poured into the machine at the back -Coffee beans are put into a grinder -The grinder is activated -A filter is put into the coffee maker -The ground coffee is put into the filter -Sometimes a bit of salt is added to the grounds to bring out flavor -The top of the machine is closed -The power is turned on -The water passes through the grounds and becomes coffee.
 Question: What is the effect of The isotope is more unstable on coffee being poured into the pot.?
Output (English): none