tcfail072.hs:23:
    Ambiguous type variable(s) `p'
	in the constraint `PrelBase.Ord p'
	arising from use of `g' at tcfail072.hs:23
 
tcfail072.hs:23:
    Ambiguous type variable(s) `q'
	in the constraint `PrelBase.Ord q'
	arising from use of `g' at tcfail072.hs:23


Compilation had errors