The crossword solutions for the term 'MERCURY AND SUN, FOR EXAMPLE' are 'PAIRS', which is a 6-letter label. The term 'PAIRS' is used to describe two similar or related things that are grouped together. In this case, the two things being grouped together are Mercury and the Sun, which are both examples of stars. Therefore, the crossword solution 'PAIRS' can be used to describe Mercury and the Sun as they are both examples of stars that are grouped together.