Groups values sharing an expectation, repeating fixed columns

All 6 scenarios hold

A cell in {curly braces} lists several example values that share one expectation. A scalar parameter expands the row into one invocation per value. A Set parameter receives the whole set as one argument.

A value in a set is a converted value, not the text in the cell. The last two rules say what follows from that. Read them before you write a value set for several spellings of one value.

A value set is a claim that the outcome is the same whichever value is chosen. Every value in the set must therefore lead to the same result. A column that is not a set, here the pass mark, keeps its single value across the whole expansion.