Under a training agreement, an apprentice is bound to the employer to learn the plumbing or fire sprinkler fitting trade full-time for 4 years, combining on-the-job and off-the-job training until the apprenticeship is complete. Every apprenticeship under the award runs for a nominal 4 years of training.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.