American Express is the only network not providing coverage on the rental of some SUVs including a Chevrolet Suburban or Tahoe, GMC Yukon, Ford Expedition, Lincoln Navigator, Toyota Land Cruiser, Lexus LX450, Range Rover, and full-sized Ford Bronco.
Take context from the input text and decide on the accurate relationship between 'Lexus' and 'Toyota' from the options provided.
Options: brand, owner of, owned by, operator