If 'The program soon expanded to other vendors, including apparel suppliers, who entered their own  trading partnerships with Wal-Mart.' is true, does it logically mean that 'The program was accessible only through partnership with Wal-Mart.' also is?
The program soon expanded to other vendors, including apparel suppliers, who entered their own  trading partnerships with Wal-Mart.###The program was accessible only through partnership with Wal-Mart.