 The Division of the City Schools of Manila , a branch of the Department of Education , refers to the city 's three @-@ tier public education system . It governs the 71 public elementary schools , 32 public high schools . 
 The Division of the City Schools of Manila , a branch of the Department of Education , <a href='uninflect' title='1'><mark>refers</mark></a> to the city <a href='null_genetive' title='2'><mark>'s</mark></a>three @-@ tier public education system . It <a href='uninflect' title='3'><mark>governs</mark></a> the 71 public elementary schools , 32 public high schools . 
The Division of da City Schools of Manila , a branch of the Department of Education , refer to the city  three @-@ tier public education system . It govern tda71 public elementary schools , 32 public high schools .