Re: 1 lightning has been deleted in version 2.
Re: 2 further is added to Head FAR and weigh added as a new entry head.
Re: 3
This is one of the biggest loopholes for all word-form-based matching tasks. rose is an example I frequently use to refer to such a problem in Range. rose can a flower, past and past participle of verb "to rise", can be a girl's name. Similar homograph examples are quite a few in the list. We have to admit this limitation.
Re: 4
0 alone lines won't affect the results, but I have cleaned them in the second version.