Usage of tersoff on SiO2

I would like to use tersoff potential on SiO2. Manual of lammps shows that the usage as follows:

pair_style tersoff
pair_coeff * * Si.tersoff Si
pair_coeff * * SiC.tersoff Si C Si

However, when I use the settings as similar it, lammps give me error for the pair_coeff lines.

Please guide me to run this calculation. How can I use tersoff on SiO2?

Best regards,

Which of those pair coeff commands is correct depends on how many atom
types you have defined. However the SiC file is not going to do a good
job modeling SiO2.