FACT: statement that can be checked and proved

Medical statistics indicate that women having a  child after age 40 are at greater risk.
Uses denotative language: words without positive/negative associations, such as table, chair, walk.

OPINION: statement that cannot be proved

The truth of the matter is that frozen foods are  just as tasty as fresh foods.
Uses connotative language,  words with positive or negative associations, such as blunder, chore. Context of language determines association.

•   She was a single mother. (denotative)
•   She was an unwed mother. (connotative, negative)

•   Relatives stayed for a week. (denotative)
•   Relatives lingered for a week. (connotative, negative)

•   The scent filled the air. (denotative)
•   The aroma lingered in the air. (connotative, positive)