| http://www.w3.org/ns/prov#value | - Youll need to explicitly give types for your read results in ghci as shown here: 5 comments ghci> read 5 <interactive>:1:0: Ambiguous type variable `a in the constraint: `Read a arising from a use of `read at <interactive>:1:0-7 Probable fix: add a type signature that fixes these type variable(s) ghci> :type (read 5) (read 5) :: (Read a) => a ghci> (read 5)::Integer 5 ghci> (read 5)::Dou
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