Preheat oven to 350 degrees F (175 degrees C). Lightly grease one 9×5 inch loaf pan.
Sift together the flour, sugar, cocoa, baking soda and salt. Add the oil, vanilla, vinegar and water. Mix together until smooth.
Pour into prepared pan and bake at 350 degrees F (175 degrees C) for 45 minutes. Remove from oven and allow to cool.
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