assert get_normalized_variants(proc, "Bauwegstr") == ['bauwegstr']
assert set(get_normalized_variants(proc, "holzweg")) \
== {'holz weg', 'holzweg'}
+ assert set(get_normalized_variants(proc, "Meier Weg")) \
+ == {'meier weg', 'meierweg'}
assert get_normalized_variants(proc, "hallo") == ['hallo']