kind differentiated a true kind

trolley

also called service cart

A wheeled mobile cart — a Cello vegetable/kitchen/round multi-stack trolley or a TBP service/mop/medical (janitorial) trolley. A direct child of Product (NOT Container — a trolley is a wheeled frame of shelves, not a holding vessel, so it has no nominal capacity). It earns its place by `wheel_count` — REUSED from the waste-management vertical, required here (a trolley MUST have wheels — that mobility IS the kind), the exclusive structural differentia over a static shelf or rack. It also REUSES `tier_count` (generalized from the lunch-carrier branch to mean any stacked tiers/levels) to state how many shelf tiers it has — a 2-tier kitchen trolley, a 3-tier vegetable trolley, the size every SKU names; optional, since a flat single-surface cart need not. The role-variety (vegetable, kitchen, service, mop, medical, utility) folds as `trolley_type` identity-token values — a janitorial mop/service trolley adds no exclusive slot over a kitchen trolley, so it is a value not a class (the fold discipline). Inherits material and color from Product. Sold across a tier_count x wheel_count x trolley_type x material space; which combinations a seller offers is a downstream Seedbed statement.

the reading

A genuine kind — it answers questions its parent does not.

A trolley is a product that adds its own wheel count, tier count and trolley type.

what it can tell you the questions a trolley answers

Grouped by the part of the product each question is about. Every trolley can answer all of these.

Identity who and what it is

Each trolley has a display name, a model name, a trade identifier, a single active state, a single brand, a single identifier exists, a single manufacturer, a single seller type, a single sub-brand, any number of tracking markings and a single trolley type. Each trade identifier carries its own identifier scheme.

Measurement its measurable, physical facts

Beyond what a product measures, it adds its own wheel count and tier count. It also records depth, height and width (in millimeters or inches), net content (in liters) and net weight (in grams or kilograms).

Facet

It has a single size system. It comes in any number of colors and materials. It offers any number of patterns and sizes.

Pricing what it costs

It can be listed at any number of list prices, list prices, list prices, list prices, list prices and list prices. It has a single custom amount enabled. Each price component carries its own price component type. Each sale price carries its own compare-at price, reference price type, promotion type, price valid from, price valid until and price eligibility. Each tier price carries its own tiers mode, tier minimum quantity, tier flat fee and price eligibility.

Compliance where it is from and what it meets

Each trolley states its country of origin. It may carry any number of certifications.

Media how it is shown

It records description and media. Each media carries its own medium type, media role, media alt text, media facing and document type.

Availability whether it can be obtained

It has a single availability status, any number of eligible regions, any number of ineligible regions and inventory quantity. Each inventory quantity carries its own quantity state.

Social proof what buyers and critics say about it

A trolley can carry a single fit verdict and aggregate rating, and any number of comments, community answers, community questions, reviews, review highlight tags and engagement counters. Each aggregate rating carries its own rating count. Each comment carries its own commenter name, commenter role and comment date. Each community answer carries its own answerer role, answer accepted and answer vote count. Each community question carries its own question author, question date and question vote count. Each engagement counter carries its own engagement signal, engagement window and engagement rank category. Each review carries its own review rating, review headline, review author, review date, verified purchase, review kind, review aspect, incentive disclosure, review language, review source platform, reviewer media, helpful vote count and variant reviewed.

Condition the state the item is sold in

Each trolley is sold in a stated item condition. A free-text condition note can add the specifics.

Fulfilment

It measures shipping weight (in grams or kilograms). It has a single requires shipping. It offers any number of fulfilment channels and shipping restrictions. It records hs tariff code. Each shipping rate carries its own delivery speed, shipping region, minimum handling time, maximum handling time, minimum transit time, maximum transit time and free-shipping threshold.

Subscription & financing

Each instalment plan carries its own instalment count, down-payment amount and credit type. Each recurring price carries its own billing interval, interval count, usage type, meter event name, usage aggregation, trial length, trial end behaviour, setup fee and phase iterations.

Tax

It has a single tax behaviour. It records tax category.

Digital delivery

It has a single gift card. It supports any number of digital delivery methods. Each digital delivery method carries its own licence term, licence scope, delivery platform / drm, download limit and access expiry.

slot-profile what a trolley answers

Every question it can answer — added here, shadowed (tightened from a parent), or inherited from above. Each answer is a ◇token, a №number + unit, or “free text.