The international symbol of access is a stylised figure in a wheelchair facing right on a plain square background, laid out to the proportional grid, white on a blue background (AS 2700 colour B21 ultramarine or near it), and used with an arrow when giving directions. The international symbol for deafness is a stylised ear with a diagonal slash on a square background, laid out to its grid, white on blue of the same colour.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.