Complex sentence: National Parks Board, Singapore National Orchid Garden was opened on 20 October 1995 by Minister Mentor Lee Kuan Yew and located on the highest hill in the Singapore Botanic Gardens.
Split into simpler sentences: National Parks Board, Singapore National Orchid Garden was opened on 20 October 1995 by Minister Mentor Lee Kuan Yew. The Garden is located on the highest hill in the Singapore Botanic Gardens.