A generative pre$-$trained transformer $($GPT$)$ was prompted to identify the zero force members in the truss

shown. The prompt read: $$Are there zero force members in the truss?

The GPT$$s raw output is provided in the box below:

Yes, based on the image you sent of the truss, there are zero force members. Here's how we can

identify them:

Rule $1$: Two$-$force members at a joint with no external load

$$ Look for joints where only two members meet and there's no external force applied at that

joint $($i$.$e$.,$ no vertical or horizontal reactions from supports or concentrated loads acting on the

joint$).$

$$ If the two members are not collinear $($meaning they don't lie on the same straight line$),$ then

the forces in both members will be zero. This is because if either member carried a force, the

joint would be unable to maintain equilibrium in the absence of a third force or external

support.

Identifying zero force members based on Rule $1$:

$$ Member CD: Joint C only has members BC and CD meeting it$,$ and there's no external force at

C$.$ Since BC and CD are not collinear, member CD is a zero force member.

$$ Member DE: Joint D only has members DE and AD meeting it$,$ and there's no external force at

D$.$ Since DE and AD are not collinear, member DE is a zero force member.

Therefore, in the truss you sent, members CD and DE are zero force members.

$1.$ Do you agree with the GPT$$s analysis of the structural system? Is the information provided by the

GPT correct? Justify your answer.

$2.$ Regardless whether you are satisfied or unsatisfied with the GPT$$s response, how would you

ensure or confirm that the truss has been properly analysed by the Artificial Intelligence tool?

How would you prompt the GPT to check the correctness of its answer? Provide the detailed

question that you would ask the GPT to achieve this goal.