In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Q: Today , most of the sources that talk about Greek boxing are either legends , or they are fragmentary .
A:
Most extant sources about ancient Greek boxing are fragmentary or legendary , making it difficult to reconstruct the rules , customs and history surrounding this activity in great detail .