Eight gram-positive organisms are waiting. They all hold the violet dye, so the stain alone cannot split them. Real labs tell them apart with a short run of cheap bench tests. Run those tests here. Each result crosses names off the list until one is left.
The bench
Pick a test on the right. The bench shows what you would actually see.
No test run yet
Start with the Gram stain
Shape and arrangement are the cheapest clues there are. Read them first, then work down the list.
The gram-positive benchrun tests until one name is left