At first glance, the highlighted words in the story appear to have nothing in common.

In fact, each of the words SELLOUT NERVOUS COVERUP UNLOVED PURPOSE CONJURE FOULEST) contains the same three vowels (EOU).

The seven sets follow the same pattern and since each word can only be in one group (since each word contains exactly three vowels) then it's very easy to find and sell the correct groups.

Vranken Solution