Professional suffix "P.Eng"

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In Canada, professional engineers will place the accreditation "P.Eng" after their name. ProbablePeople incorrectly identifies the suffix "P.Eng" as a second "GivenName", which results in the following error:

$ python
Python 3.10.12 (main, Nov 20 2023, 15:14:05) [GCC 11.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import probablepeople as pp
>>> pp.parse("Brian Ellis Linkletter, P.Eng")
[('Brian', 'GivenName'), ('Ellis', 'MiddleName'), ('Linkletter,', 'Surname'), ('P.Eng', 'GivenName')]
>>> pp.parse("Brian Ellis Linkletter, M.D.")
[('Brian', 'GivenName'), ('Ellis', 'MiddleName'), ('Linkletter,', 'Surname'), ('M.D.', 'SuffixOther')]
>>> pp.tag("Brian Ellis Linkletter, P.Eng")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/brian/Projects/learning/parser/venv/lib/python3.10/site-packages/probablepeople/__init__.py", line 132, in tag
    raise RepeatedLabelError(raw_string, parse(raw_string), label)
probablepeople.RepeatedLabelError: 
ERROR: Unable to tag this string because more than one area of the string has the same label

ORIGINAL STRING:  Brian Ellis Linkletter, P.Eng
PARSED TOKENS:    [('Brian', 'GivenName'), ('Ellis', 'MiddleName'), ('Linkletter,', 'Surname'), ('P.Eng', 'GivenName')]
UNCERTAIN LABEL:  GivenName