oil@@1	oil	petroleum	14
oil@@1	oil	fossil fuel	10
oil@@1	oil	crude	6
oil@@1	oil	black gold	5
oil@@1	oil	crude oil	5
oil@@1	oil	gas	4
oil@@1	oil	light sweet crude	3
oil@@1	oil	commodity	2
oil@@1	oil	fuel	2
oil@@1	oil	fuel oil	2
oil@@1	oil	oil resource	2
oil@@1	oil	slick	2
oil@@3	oil	grease	4
oil@@3	oil	vegetable oil	3
oil@@3	oil	cooking oil	2
oil@@3	oil	lard	2