In the context of the input sentence, determine the relationship between 'Lexus' and 'Toyota'.
Options: product/material produced, parent organization, manufacturer, chief executive officer

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.
parent organization