Complex sentence: The Shanghainese tonal system is also significantly different from other Chinese varieties, sharing more similarities with the Japanese pitch accent, with two level tonal contrasts (high and low), whereas Cantonese and Mandarin are typical of contour tonal languages.
Split into simpler sentences: The Shanghainese tonal system is also significantly different from other Chinese varieties, sharing more similarities with the Japanese pitch accent. Shanghainese has two level tonal contrasts (high and low), while Cantonese and Mandarin are typical of contour tonal languages.