What is the relationship between Ma Zengshou and Ma Zenghui?

Brother-sister relationship Ma Zenghui, female, crosstalk performer, national first-class actor. His representative works include: Disputes, Wedding, Seeing the Wealth Slave, etc. 20 18 1 month, was elected as the representative of the 13th national people's congress. Ma Zengshou, male, rapper, national first-class actor of China Railway Art Troupe. Ma Zengshou is good at performing stand-up crosstalk, in which the clown is the main role and the characters are vivid and lifelike. Participated in many large-scale performances in China and Beijing, and was well received by the audience. Ma Zengshou is Ma Zenghui's brother. They are brother and sister.