Inorder Traversal of the Ternary Tree
According to me answer should be :- AKBJCLIEDHFG


Your answer is ((A)  (K)  ((B) (J) (C)))   (L)   (I)   (((E) (D))  (H)  (F) (G))

Please take a close look at the part ((E) (D)). Here lies the ambiguity/confusion/uncertainty. The ambiguity is whether D is the left subtree or the middle subtree or the right subtree of E.

Because of the limited drawing spaces that shows the tree, it can be argued in a few ways. I could swear that D is meant to be the left subtree or E. On a different day, I might, agreeing with you, insist that D is so apparently the middle subtree of E. On another day, I could stretch myself a little bit, unabashedly claiming that D is in fact the right subtree of E. Unless there are some kind of instructions such as your textbook or whatever material you have been using has defined the rules how to tell the class of subtree from the way is drawn in case of ambiguity, it is impossible to conclude which subtree of E D is.

So your question is reduced to whether there are those kind of rules in your material. Or in your instructor's notes or oral guide. Or, what is general convention in your culture or your context to interpret "left", "middle" and "right". This question is not so much of computer science, but more about linguistics and drawings and culture.

If I had to pick one solution out of no context, I would be very frustrated on deciding whether D is a left subtree or right subtree of E. I would choose one of many possible actions below, without any particular preference. 


try finding the context or the rules.
just choose left subtree.
just choose middle subtree.
wave my hands, declaring no value to solve a question that is not well-formed.
presenting two solutions or three solutions, each with its assumption stated clearly.
redraw the graph in the question.
raise a question about that question to seek other's judgements as you just did
had I been a student, my TA should have been my savior and my professor should have been the ultimate arbitrator.
the last option that stands for all the remaining possibilities.


(By the way, I just searched the lecture briefly. I have not found any definitive guide on how to tell left or middle or right subtree. Of course, I might have missed some hints or conspicuous rules.)