Link purpose from context (link-purpose-context)
A link's purpose can be determined from nearby context that is programmatically associated (e.g., a heading, paragraph text, list item text, table cell, ARIA label, etc.)
Unclear link without context:
This example fails WCAG 2.4.4 because the link purpose is only understandable by referencing a separate paragraph, which is not programmatically associated.
A British businessman has racked up 2 million flyer miles and plans to travel on the world's first commercial tourism flights to space.