Complex sentence: In nearly a decade, Nepal witnessed three Madhes Movements-the first Madhes Movement erupted in 2007, the second Madhes Movement in 2008 and the third Madhes Movement in 2015.
Split into simpler sentences: In nearly a decade, Nepal witnessed three Madhes Movements namely Madhes Movement I, Madhes Movement II and Madhes Movement III. The first Madhes Movement erupted in 2007, the second Madhes Movement in 2008 and the third Madhes Movement in 2015.