Djia Index Funds

What is a good index S & P 500 index fund?
In addition, a Dow Jones index funds? Thanks!
For S & PI as VFINX Vanguardia, but fidelity is a good one too. Vanguard is owned by the funds (ie, people who own funds) and Fidelity is private property for IMO Vanguard works harder for me.
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