Given a sentence, judge the quality of this sentence by indicating "Good" and "Bad". The quality depends on the grammar and the meaning of the sentence. If a sentence is easily understandable, and doesn't have grammatical errors, answer with "Good", otherwise answer with "Bad".
Q: Demand forecast uncertainty has grown substantially, amplified by the challenges retailers face due to product proliferation and increasing the level of inventory that must be held to meet customer demands.
A: 
Good