Complex sentence: Therefore, on July 11, Forestry minister Yuji Yamamoto pledged to set up a task force to take a large driftwood, while an official at the University of Hyogo warned other municipalities of potential damage caused by fallen trees.
Split into simpler sentences: Therefore, on July 11, Forestry minister Yuji Yamamoto pledged to set up a task force to take a large driftwood. Meanwhile, an official at the University of Hyogo warned other municipalities of potential damage caused by fallen trees.