create TABLE agents(agentid int, agent_first_name char,agent_last_name char,agent_home_phone char
    ,PRIMARY key(agentid));

create TABLE client (clientid int,agentid int, client_first_name char, client_last_name char, client_home_phone  char,
PRIMARY key (clientid),
FOREIGN key  (agentid) REFERENCES agents (agentid));