Part,  Chapter, Paragraph

1    I,     2.  8    | occupational)~Natural gas~ ~Cleaner burning than other fossil
2    I,     2.  8    | coal and towards relatively cleaner ones, such as gas, in several
3  III,    10.  4.  1|     Ambient Air Quality and Cleaner Air for Europe (the CAFE
4  III,    10.  4.  1|     Ambient Air Quality and Cleaner Air for Europe. COM(2005)
5  III,    10.  4.  1|     Ambient air quality and cleaner air for Europe” ({COM(2005)
6   IV,    11.  1.  3|   e.g. education leading to cleaner water and a better understanding