Complex sentence: Ty Lee once said her reason for wanting individualism was from having sisters who "look exactly like her" which could suggest she is part of a set of septuplets, but it is never seen whether or not it was just a figure of speech.
Split into simpler sentences: Ty Lee once said her reason for wanting individualism was having sisters who "look exactly like her," which could suggest she is part of a set of septuplets. However, it is never clarified whether or not it was just a figure of speech.