
 # Compute probability and exit.
 test = test

 # Sequence data for the three partitions.
 align = dna.fasta
 align = rna.fasta
 align = dna.fasta

 # Link the first and third partitions
 smodel = 1,3:tn93+Rates.free[n=3]

 # The second partition has a fixed alignment.
 smodel = 2:tn93
 imodel = 2:none

 # Link the first and third partitions
 scale = 1,3:
