Complex sentence: While our content passed their review processes, they claimed it was simply an "inadvertent omission of citation" it is likely that a replacement chapter was requested immediately after the WMF legal department contacted OUP's team.
Split into simpler sentences: While our content passed their review processes, they claimed it was simply an "inadvertent omission of citation". It is likely that a replacement chapter was requested immediately after the WMF legal department contacted OUP's team.