Number 84 in the series of puzzle caches requiring a bit of lateral thinking. This one leads to yet another magnetic cache container (sorry!) at an appropriate final location.
The rest of the series can be found by clicking on this link to the Only Connect bookmark list.
For this one, I would like you to decode the text strings below, deduce the connection, and thus work out the text string which is missing from the group. Once you have that, stick it in Certitude and you will be rewarded with the finals, as well as a hint of where to find your goal. I am writing this cache description up a couple of days in advance of placing the cache, when I don't actually know the correct solution myself. The cache will be placed and sent for publication on the day when I'll know for sure.
What string of letters is missing :
gwfenq
kivqerc
mxepc
ctigpvkpc
wtwiwca
fohmboe
tqbjo

You can validate your puzzle solution with certitude.