Fixes for some test sentences

@linas I think "<F_L str> = fewer" is correct on above line, it use fewer to form a  _comparative() relationship. e.g I have fewer chairs than Ben. fewer is used to form the  _comparative(chair, have)
Since "fewer" is a quantifier for "chairs", my argument was whether we need a "_advmod(have, fewer)" relationship for above sentence? Because "fewer" does not act as a adverbial modifier for "have" in above sentence.