12, are for linguistic, contextual, and other reasons, also probably late.
"Introduction to the Old Testament"
John Edgar McFadyen
You can do this by making each sentence or phrase in which they occur independent of contextual aid.
"How to Speak and Write Correctly"
Joseph Devlin
After a thorough examination of the Conventions and of the several contextual documents, the Secretary of State reached the conclusion that no such monopoly was intended or accomplished.
"Complete State of the Union Addresses from 1790 to the Present"
Various