Words that are likely to be given names. All words/tags
until the first separator (e.g. 'known_as').
1:
Words that are likely to be alternative given names. All
words/tags in the first alternative given word area.
2:
Words that are likely to be surnames. All words/tags until
the next separator or the end of the list.
3:
Words that are likely to be alternative surnames. All
words/tags in the second alternative given word area or until the
end of the list.
4:
Words that are likely to be second alternative surname or
until the end of the list. All words/tags after second alternative
word area or the end of the list.