For many Sri Lankans, Wela is more than just an irrigation system – it's a symbol of their cultural identity and heritage. The Wela system has been mentioned in ancient Sri Lankan literature, folklore, and mythology, and is often referenced in traditional songs, dances, and art. By documenting and sharing Wela-related stories and experiences, Sri Lankan Wela videos help to preserve the country's cultural heritage and promote national pride.

The Wela system in Sri Lanka dates back over 2,000 years, with evidence of ancient irrigation systems found in the country's earliest civilizations. The Wela tanks, which are large reservoirs that store water for irrigation, were built by ancient Sri Lankan kings and queens to support agriculture and ensure food security. Over time, the Wela system evolved and expanded, with new technologies and innovations being introduced to improve its efficiency and effectiveness.

Propose three quantitative metrics to measure engagement and cultural impact of a sample of wela videos. (5 marks)

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