In this example, the caption is part of the image file and is therefore only accessible as part of the description. A Venn diagram captioned: "In a survey of 250 European travelers, 93 have traveled ...

A Venn diagram is a way of grouping different items. These groups are known as sets. We have a set of golf clubs or a set of dishes – these are just groups of those items. We write a set using a ...

It's possible a Venn diagram can have three (or more) sets depicted within them. A set of pupils were asked which sports they played in school, from a list of Football, Hockey, Netball and None.