preferred_name: chloroethene + chloride + A + H(+) => 1,1-dichloroethene + AH2
preferred_name_lc: chloroethene + chloride + a + h(+) => 1,1-dichloroethene + ah2
label: chloroethene + chloride + A + H(+) => 1,1-dichloroethene + AH2
label_lc: chloroethene + chloride + a + h(+) => 1,1-dichloroethene + ah2