¿Cuál es la diferencia entre Relation y Relationship ?Puedes dar oraciones como ejemplo.

Relation can have several meanings. It can mean "as two things are relevant to each other" for example "I spoke with Jeff in relation to the client account". It can also refer to two people sharing (or not sharing) a family connection: "I'm Uncle Sam, no relation." It can also refer to sexual intercourse. "I did not have sexual relations with that woman." There are other uses as well.

A relationship is the connection between two things. A common use is to refer to romantic couples. "Tom and Amanda are in a relationship." It can also denote the connection of inanimate things: "There is a clear relationship between overeating and obesity."