“…To the best of our knowledge, there is no “gold standard” for the annotation rate. Various studies conducting semantic annotation in various domains, such as Bada, Vasilevsky, Haendel, and Hunter ()) and Beasley and Manda ()) in bioinformatics, Lévy, Tomeh, and Ma ()) and Fiorelli, Pazienza, and Stellato ()) in annotation tool development, Jadidinejad, Mahmoudi, and Meybodi ()) in document classification, and Ali et al () in knowledge engineering; try to maximize the number of words annotated but do not report any number for annotation rate. We report on our findings regarding the annotation rate in Section 5.4.…”