4FEN|1|B|A|21 ns3O2' 4FEN|1|B|U|22 R3DSVS 4FEN|1|B|U|22 nsO2'3 4FEN|1|B|A|21 R3DSVS 4FEN|1|B|U|22 sO4'3 4FEN|1|B|A|23 R3DSVS 4FEN|1|B|A|23 s3O4' 4FEN|1|B|U|22 R3DSVS 4FEN|1|B|U|63 sO4'5 4FEN|1|B|A|64 R3DSVS 4FEN|1|B|A|64 s5O4' 4FEN|1|B|U|63 R3DSVS