I think it’s “ Swimming swiftly, was the only way for the dolphin to stay with its pod “
Correct me if I'm wrong but I believe it is phrase or clause containing three or more words at the beginning or end of a sentence.
Answer:
babcd
Explanation:
The last words of the first and third lines rhyme, and so do the last words of the second and fourth lines, making the rhyme scheme abab. The fifth and sixth lines do not rhyme, so the rhyme scheme for them is cd.
Thus, if the first line is identified as “a” in the rhyme scheme, the remaining lines should be identified as "babcd".