Figure 4.

The overlap graph of G = (○ A –B –A –B C D –C –E –F –D G –H –G H I –J –F –E –I J K –L –M –K –L –M ○). Oriented vertices are colored in grey. The graph has 4 oriented connected components.

Thomas et al. BMC Bioinformatics 2011 12(Suppl 9):S20   doi:10.1186/1471-2105-12-S9-S20