Complex sentence: He is also remembered for his composition, "Semoga Bahagia", for primary-schoolgoing his Children's Day song for Singaporean children, and for the Singapore Youth Festival, advising children to work hard for their future.
Split into simpler sentences: He is also remembered for his composition, "Semoga Bahagia", aimed at primary school students. It has become a Children's Day song for Singaporean children, and for the Singapore Youth Festival, advising children to work hard for their future.