@ChehrehBargi, Again,
1- If you add temporary objects, they will be removed, and yes, 1 week a year is considered temporary, read here: https://wiki.openstreetmap.org/wiki/Good_practice#Don't_map_temporary_events_and_temporary_features         
2- If you add names in a language that are not on the ground in a sign it should be removed especially if it's not local and translated by 3rd party services.       
3- If you map anything not on the ground in reality, like inscriptions, monuments, and others, and you assume is this fine, even with good faith, it will be removed as it's considered as fictional mapping.        
Bye.     