One URL per line. We classify automatically by URL pattern:
amazon.com/dp/<ASIN> or /gp/product/<ASIN> → individual product (Rainforest)
amazon.com/product-reviews/<ASIN> → product reviews (Rainforest)
amazon.com/stores/... or /s?... → brand-wide product search (Rainforest)
walmart.com/ip/<id> → individual product (BlueCart)
walmart.com/reviews/... → product reviews (BlueCart)
walmart.com/brand/..., /browse/, or /search → brand-wide search (BlueCart)