But in fact a little-known group of home-worker humans plays a large part in the Google process.

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The team was formed three years ago to offer older women a chance to exercise and come together as a group, says community worker Beka Ntsanwisi.

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"These are workers who are most likely to spend virtually everything they earn, so it just pumps money back into local economies, " said Christine Owens, executive director of the National Employment Law Project, a worker advocacy group.

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