Complex sentence: The school covers an area of about 70000 square meters and has 62 classes, with 3300 students, five Jiangsu Province special-grade teachers and 86 head teachers.
Split into simpler sentences: The school covers an area of about 70000 square meters and has 62 classes. It has about 3300 students, 5 Jiangsu Province special-grade teachers and 86 head teachers.