While working at the orchard, Homer shares a wooden shack with a group of black migrant workers.

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Of those, 27 were non-Saudis -- and most of the foreigners executed in recent years were migrant workers from developing countries, the group said.

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The group has also questioned the benefits brought by legal migrant workers.

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Activists from the women's rights group Feminist Fightback have also joined the demonstration as a majority of the cleaners are women and migrant workers.

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