&version=1.0
&lmdz
default    type=tracer  phases=g    hadv=10   vadv=10   parent=air
H2O                                 hadv=14   vadv=14
H2O                     phases=ls
H2[18]O,H[2]HO,H2[16]O  phases=gls                      parent=H2O
RN,PB