Q: Take the last letters of the words in "Randell Graham" and concatenate them.
A: Reasoning process: At the start of the match, Alice is playing goalkeeper, Bob is playing left winger, and Claire
is playing right midﬁelder. 1. Take the last letters of the words in "Randell Graham" which would be "ll" and "m". 2.
Concatenate them to form "lm". Final answer: lm.

Q: Take the last letters of the words in "Randal Holland" and concatenate them.
A: Reasoning process: 1. We need to ﬁnd the last letters of the words in "Randal Holland" 2. "Randal" ends in "l" and
"Holland" ends in "d" 3. The last letters of the words in "Randal Holland" are "ld" Final answer: ld.

Table 15: The exemplars are selected on Last Letter Concatenation train set.

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DATASET
GSM8K

Iter-CoT(S) Exemplars
Enhancing Chain-of-Thoughts Prompting with Iterative Bootstrapping in Large Language Models