For safety reasons, elevators with a service life of more than 10 years must be replaced with steel cables. Some of the elevators that must be replaced with steel cables are of the S brand. All S brand elevators have no hidden safety hazards. Can it be launched from this? ['Some elevators with hidden safety hazards must be replaced with steel cables.', 'Some S-brand elevators must be replaced with steel cables.', 'Some S-brand elevators do not need to replace steel cables.', 'All elevators that must be replaced have a service life of more than 10 years.']