Context: Paper is a thin material produced by pressing together moist fibres of cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets. It is a versatile material with many uses, including writing, printing, packaging, cleaning, and a number of industrial and construction processes.

Question: What is a source for the particles in paper?
Answer: wood

Question: What is a common use for paper?
Answer: writing

Question: What is the last step in paper production?
Answer: drying

Question: What is a thick material produced by pressing cellulose fibers?
Answer: Unanswerable

Question: From what type of fibers are rags made?
Answer: Unanswerable

Question: What fails to be a versatile material and has few uses?
Answer: Unanswerable

Question: How is writing produced?
Answer: Unanswerable

Question: What is a source for the non-particles in paper?
Answer: Unanswerable

Question:  What is an uncommon use for paper?
Answer: Unanswerable

Question:  What is the last step in wood production?
Answer: Unanswerable