Fixes a use case with names like 'ben jones'

[mikkelking]

The existing regexes for middle names like 'ben', 'del', 'il' etc also fire at the beginning of the line,
so ben cousins => ben Cousins
and van johns => van Johns
This regex change fixes that

[compwright]

@mikkelking if you're parsing a full name like Ben Cousins, don't pass { individualFields: true } and it will work fine as-is.