Variable
dibenzo_ac_anthracene
dibenzo_ah_anthracene
cyclopenta_cd_pyrene
benzo_c_phenanthrene
dibenzo_ae_pyrene
benz_a_anthracene
dibenzo_ah_pyrene
benzo_j_fluoranthene
chrysene
5-methylchrysene
benzo_ghi_perylene
benzo_a_pyrene
benzo_e_pyrene
inden_123cd_pyrene
anthanthrene
dibenzo_al_pyrene
dibenzo_ai_pyrene
coronene
benzo_b_naphtho_21_d_thiophene
perylene
benzo_k_fluoranthene
benzo_b_fluoranthene