Our contract includes among others We operate the route on their own economic risk but Lufthansa its sales organization for us is and takes over the ground handling in return Lufthansa receives a Commission of the traffic revenue It corresponds to about the movements of a general agent

Could you correct the punctuation please?
Our contract includes among others, We operate the route on their own economic risk, but Lufthansa its sales organization for us is and takes over the ground handling; in return, Lufthansa receives a Commission of the traffic revenue, It corresponds to about the movements of a general agent.