execute as 84dbcb45-052f-45d5-83d2-20690b218504 unless entity @s[tag=trade_mason_iron] at @s run tellraw @a[distance=..5] [{"text":"<"},{"selector":"@s"},{"text":"> "},{"text":"That's a very strong metal! Use it by the Swordsmith or the Elder!","color":"gray"}]
execute as 84dbcb45-052f-45d5-83d2-20690b218504 unless entity @s[tag=trade_mason_iron] run tag @s add trade_mason_iron
advancement revoke @s only projectswords:mason_trade_iron