tellraw @a {"translate":"%1$s has completed every advancement in the %2$s tab, earning them the advancement %3$s%4$s%5$s","with":[{"selector":"@s"},{"translate":"Building"},{"color":"yellow","text":"["},{"color":"yellow","translate":"Building Milestone","hoverEvent":{"action":"show_text","contents":{"color":"yellow","translate":"Building Milestone","extra":[{"text":"\n"},{"color":"#E5E74F","translate":"Complete every advancement in the Building tab"},{"text":"\n\n"},{"color":"gray","italic":"true","translate":"%1$s tab","with":[{"translate":"BlazeandCave's Advancements"}]}]}}},{"color":"yellow","text":"]"}]}