qualifier number + unit a measured amount

helpful vote count

How many people marked one review helpful. A qualifier of the review property, a count on the generic counting dimension. Per-review scope — distinct from the product-level helpful-vote engagement counter.

Helpful vote count is a measured figure, given as a whole count of selling units.

It is a qualifier of review — it has meaning only inside a review statement, one per statement, never on its own. It belongs with review to social proof — what buyers and critics say about it.

It is answered inside every review statement, not as a standalone question on a kind.

answered with: №number + unit — a number paired with a unit drawn from an exhaustive unit vocabulary.
value domain: Quantity Units — the vocabulary its answers are drawn from.
qualifier of: review — one per statement — it has meaning only inside that host's statement.

Answered inside every review statement — not a standalone slot on any kind.