Assertion: howl | /r/HasProperty | rooted in southern africa
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Source sentences:
text: Ululation is rooted in the culture of North Africa and Eastern Africa as well as Southern Africa and is widely practiced in Tanzania, Kenya, Angola, Democratic Republic of the Congo, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Sudan, Ethiopia-Eritrea, Somalia, Uganda, Zambia, and Zimbabwe.