Bile salts give stool its characteristic brown color. If there is decreased bile flow caused by a condition affecting your gallbladder, liver, or pancreas (such as cholecystitis, gallstones, giardia, hepatitis, chronic pancreatitis, or cirrhosis), there may be a lack of bile in stool, making them pale or clay colored.
The writer uses irony in the passage with the sense of purposes to it. This purposes includes, criticizing the adults, to sympathize the children and also to create a tragic situation in the passage. Firstly, the writer uses the technique irony to criticize the adult.
In line 18 the use of the sorrowful sounds of the monkeys are a reminder to the wife of her own sorrows. Lines 19-21. These lines are centered on the river merchants absence. In line 20 the phrase by the gate implies she has returned to the gate and is a memory of when/where he left. Lines 22-25. In line 22 the river merchants wife is again reminded of her sorrow by the falling leaves of autumn and by the paired butterflies who are turning yellow and changing with the season. she says the butterflies hurt her because they make her realize she is growing old too but not with her husband.