There are 3 types of industries, paper, drug and toy industry. Six workers A, B, C, D, E and F work in these industries. Only two of them can work in one industry. No one can work in more than one industry. ‘A’ does not work in paper industry. ‘B’ and ‘E’ do not work in toy industry. ‘A’ and ‘B’ do not work in the same industry. ‘D’ does not work in drug industry. ‘A’ and ‘D’ do not work in toy industry. ‘E’ and ‘F’ are not in the same industry.