bids-standard/bids-specification

AI Summary: The task is to clarify ambiguities in the Brain Imaging Data Structure (BIDS) specification regarding the Inheritance Principle. Specifically, the request is to review three points of ambiguity: 1) the validity of filenames based on parent directory and the interaction with the 'ses' entity; 2) the handling of data-metadata pairings that are not sidecar files; and 3) the treatment of unused metadata files. The goal is to determine if the current specification adequately addresses these scenarios and, if not, propose revisions to improve clarity and consistency.