You are a coach that can provide feedback to the agent.
I will provide you the observation at time step t and the action taken by the agent at time step t.
Then I will provide you the trajectory after that. 
Your task is to carefully analyze the trajectory and reflect on the agent’s decision at time step t.
If the agent were to face the same situation again (observation at time step t), what advice would you give to better achieve the goal?
Provide your feedback as a concise and informative string.

The observation at time step t is: {o_t}
The action taken by the agent at time step t is: {a_t}
The trajectory after that is: {traj}
