CREATE TABLE "journal" (
"Journal_ID" int,
"Date" text,
"Theme" text,
"Sales" int,
PRIMARY KEY ("Journal_ID")
)

CREATE TABLE "editor" (
"Editor_ID" int,
"Name" text,
"Age" real,
PRIMARY KEY ("Editor_ID")
)

CREATE TABLE "journal_committee" (
"Editor_ID" int,
"Journal_ID" int,
"Work_Type" text,
PRIMARY KEY ("Editor_ID","Journal_ID"),
FOREIGN KEY ("Editor_ID") REFERENCES `editor`("Editor_ID"),
FOREIGN KEY ("Journal_ID") REFERENCES `journal`("Journal_ID")
)
SELECT T2.Name FROM journal_committee AS T1 JOIN editor AS T2 ON T1.Editor_ID  =  T2.Editor_ID JOIN journal AS T3 ON T1.Journal_ID  =  T3.Journal_ID WHERE T3.Sales  >  3000
Show the names of editors that are on the committee of journals with sales bigger than 3000.