• Amine : vdj_pipe
• Ketone : vdj_pipe
• not_A : vdj_pipe
• not_C : vdj_pipe
• not_G : vdj_pipe
• not_T : vdj_pipe
• Purine : vdj_pipe
• Pyrimidine : vdj_pipe
• Strong : vdj_pipe
• Uracil : vdj_pipe
• Weak : vdj_pipe