The algorithm also takes as input a *preferred-attributes* list that contains, in order of preference, the attributes that human writers use to reference objects.
iF a nom is similar to the head noun of the object of any relation of e i THEN (a) SQ = SQ + 4 (b) flatten that relation for e i , i.e., add the attributes of the object of the relation to the attribute list for e i in step 2, we compare a nominal attribute a nom of e o to the head noun of the object of a relation of e i .