Will each group of textually similar documents contain a principal document?

Each group of textually similar documents typically contains a principal document. In the context of document review and management, particularly when considering the identification and organization of similar texts, the principal document serves as the main reference or authoritative version of the content. This is crucial for ensuring consistency and accuracy during the review process.

Textually similar documents are often grouped together based on features like shared phrases, sentences, or overall themes. Within these groups, the principal document acts as a representative example that captures the essential elements of the group. This facilitates efficient review, as it allows reviewers to focus their attention on one key document while still acknowledging the existence of other similar documents that may be relevant.

The other options do not fully address the relationship between principal documents and groups of textually similar documents. For instance, stating that a principal document exists only if they are duplicates narrows the criteria too much, as it overlooks the broader concept of text similarity that may not be confined to exact duplicates. Moreover, claiming that there will only be a principal document if the texts are less than 100% similar misunderstands the concept of principal documents, as the definition includes all types of textually similar documents. Therefore, having a principal document in such groups is a standard practice in effective document