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I run a site that is largely powered by user reviews. We have almost 20,000 reviews, and each review has its own unique URL (/items/item-reviewed/reviews/1), as each one is quite lengthy and detailed (much longer than the normal Yelp review). Of course, the item being reviewed has its own URL (/items/item-reviewed), and we would very much prefer users are driven to that page rather than a review page in search results. I've been looking into ways to improve our SEO, and I'm wondering if the current structure is hurting our SEO to the item page, and if so, what is the best way to 'solve' the issue without causing future SEO issues. Basically, are the 20,000 (and growing) review pages reducing the SEO impact of the actual item pages? I'd like to get the content in the reviews indexed, but not at the expense of negative SEO impact on the items being reviewed. I have several follow-up questions if the answer to my question is indeed 'Yes, it is negatively impacting the SEO of your item page', so I'll await a response. Thanks!