Building the Largest Open-Access Multilayer Corpus for Ancient Greek: Opera Graeca Adnotata

The Opera Graeca Adnotata (OGA) is the largest open-access multilayer corpus for Ancient Greek, containing 1,687 literary works and over 34 million tokens, with seven annotation layers including tokenization, sentence segmentation, lemmatization, morphology, dependency, dependency function, and Canonical Text Services (CTS) citation.