A question of style: Composite keys to multiple values

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External_Name
External_Value
Internal_Name
Internal_Value

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External_Name  External_Value Internal_Name Internal_Value
GLD_SPT        PX_VALUE       Gold          Price
AXXX111        PX_VALUE       Frob          Spread

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$Name_Resolver{lc("$External_Name|$External_Value")} = $Internal_Name;

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