Fig. 7
From: Illuminating the dark side of the human transcriptome with long read transcript sequencing

Putative novel genes breakdown. Novel gene breakdown by features. Combinations of features provide support for each gene being either real and belonging to a specific biotype or not real and the result of erroneous model predictions. The largest feature set faction are indicative of non-real models. However, there are still thousands of loci with feature sets which are compatible with real genes