Group 1 - The article highlights the investment strategy of focusing on undercovered and unappreciated Canadian dividend stocks, which are excellent companies with solid values that pay dividends [1] - The individual mentioned in the article, Nelson, retired from the corporate world at the age of 39 and now manages his own investment portfolio full-time [1] Group 2 - No specific companies or stocks are mentioned in the article, and there are no positions held by the author in any of the companies discussed [2] - The article does not provide any investment recommendations or advice regarding the suitability of investments for particular investors [3]