Complex sentence: In legislative level, Valenzuela is divided into two congressional districts: first district contains 24 barangays of the northern half of the city, while the second district contains the remaining 9 barangays of the southern portion of the city.
Split into simpler sentences: In legislative level, Valenzuela is divided into two congressional districts. Legislative district one contains 24 barangays in the northern half of the city, while legislative district two groups the 9 barangays in the southern portion of the city.