Zhan, what is the word of the fourth voice group?

Station,

Ocean station,

Standing posture,

A standing cage,

Standing in the hall,

The whole station,

Hosting station,

Sharp station,

Standing time,

Standing and singing,

Standing in red,

Stop,

Stand firm,

Standing on the boat,

Standing sheep,

Is standing,

Stand husband,

Horse station,

Outpost,

Qiao Zhan,

Station households,

Station,

Standing flowers,

Stop,

Stand guard,

Relay station,

Space station,

Nuclear power plant,