Problem: Does "In many situations it is desirable to consider two group elements the same if they differ by an element of a given subgroup." answer the question "When is it preferable to consider two group elements to be the same?"

A: no

Problem: Does "Catalan has inherited the typical vowel system of Vulgar Latin, with seven stressed phonemes: /a e i o u/, a common feature in Western Romance, except Spanish." answer the question "What differs in vowel reduction?"

A: no

Problem: Does "Another issue that researchers have attempted to address is the question of why people engage in discrimination, i.e., why they tend to favor those they consider a part of their "in-group" over those considered to be outsiders." answer the question "People favoring those in their group over outsiders, is an example of what?"

A:
yes