An attribute that must be present for every entity (or relationship) instance is required attribute.
1 : State of relationship or interrelationship examined relationships between variables. 2 : A relationship that connects or binds the participants of a relationship: Etc. b : relatives of a particular entity or kind.
A perfect relationship is one that "lives and lives, understands and respects each other's individuality." Accept each other for what they are, including their strengths and weaknesses.
A romantic relationship is one that is characterized by feelings of love and attraction to another person. accompanies
Learn more about relationship here:https://brainly.com/question/10286547
#SPJ4
