preferred_name: prostaglandin F2alpha(out) <=> prostaglandin F2alpha(in)
preferred_name_lc: prostaglandin f2alpha(out) <=> prostaglandin f2alpha(in)
label: prostaglandin F2alpha(out) <=> prostaglandin F2alpha(in)
label_lc: prostaglandin f2alpha(out) <=> prostaglandin f2alpha(in)