Listen and fill in the blanks in the summary

Listen and fill in the blanks in the summary with ONE WORD from the instruction of recycling paper. 

The first stage: (6) .collecting

Old paper can be collected from four common sources: waste paper from factories, (7).........................materials from stores, unwanted business documents from office and (8) .......................or cartons from households. Once collected, the paper is taken to a (9) ...........................plant where it is separated into types. This is necessary because some types of (10) ..........................such as books or photographic paper can not be recycled.