Task: Question Answering
Input (English): Process:  -An area is at a higher elevation than the surrounding area -Rain falls -Water is in the area of high elevation -The water creates a stream -The stream moves towards lower elevation -The stream continues along the same path for a long time -The soil and rocks erode where the stream touches them -The stream moves deeper into the soil -The stream is smaller than the eroded area.
 Question: What is the effect of less time period achieved on less erosion occurred.?
Output (English): for