---
ff:
  cardinal:
    one: i = 0,1 @integer 0, 1 @decimal 0.0~1.5
    other: " @integer 2~17, 100, 1000, 10000, 100000, 1000000, … @decimal 2.0~3.5,
      10.0, 100.0, 1000.0, 10000.0, 100000.0, 1000000.0, …"