Record-Breaking Works Holiday

So a Chinese billionnaire decided to take 6,400 of his staff on a four-day jolly to France (like you do). They were in Nice today and bizarrely held an official record-breaking attempt to form the largest sentence made up of humans (?!)... I don't know what they were spelling out so will have to wait for the aerial photos on tonight's news. All very odd, and it briefly took my mind off the travesty of an election result back home...

EDIT: this is what they were spelling out... not that it makes much sense...! https://www.facebook.com/NiceTourisme/posts/1065732143440907:0