text 151 1864 809 1994
text 150 425 810 1745
text 850 1259 1509 1688
text 850 185 1510 987
equation 926 1003 1503 1242
equation 168 311 803 382
equation 898 1703 1503 1987
equation 185 1771 803 1838
text 151 191 809 283
header 428 130 1238 156