3 Ambiguous occurrence `sort'
4 It could refer to either `sort', defined at rn029.hs:7
5 or `List.sort', imported from List at rn029.hs:4
8 Ambiguous occurrence `reverse'
9 It could refer to either `reverse', defined at rn029.hs:11
10 or `List.reverse', imported from List at rn029.hs:4
12 Compilation had errors