To meet merge requirements, all PR's labels need to satisfy at least one of queries configured for the repo that the PR belongs to.
The table below shows all queries for the PR's repo. Each row of the table below shows 2 parts of a query: required labels missing from the PR and forbidden labels that the PR has.
The PR would be considered as meeting merge requirements once it obtains all required labels and removes all forbidden labels for at least one row.
For more information, see:Kubernetes Contributor Guide&Command Help Page