Forums Scripts & Popups look in a txt file and return to alias/variable

as far as i can see all the replies work the other way around...

i have text in the txt file like

prison.break;scripted;us
the.mentalist;scripted;us
uefa.champions.league;sports;n/a

and then my trigger (lets call it %y) is like:
var %y uefa.champions.league.2010.2011.arsenal.vs.barcelona

or

var %y uefa.champions.league.highlights

then i need it to set %x as uefa.champions.league and
if (%x isin %y) { echo -a * MATCH FOUND %x matches %y }