Assertion: airbus's number | /r/HasProperty | a sequential
Facets:
value: for each type
type: OTHER
Source sentences:
text: The large Iron Cross and serial numbers have since been replaced on all aircraft by a four number registration code, appearing somewhat in the manner of the earlier alphanumeric Geschwaderkennung combat wing code characters used by their World War II predecessor — separated by an Iron Cross in the middle: the first two numbers identify the type of aircraft and the second two numbers are a sequential for each type.