Return distinct pairs of names which have the same exact items in column

I want to find the distinct pairs of names in the table which have the same exact items in the items column. For instance:

CREATE TABLE t
(
    name    VARCHAR(255),
    item    VARCHAR(255)
);

INSERT INTO t VALUES("Alice", "Orange");
INSERT INTO t VALUES("Alice", "Pear");
INSERT INTO t VALUES("Alice", "Lemon");
INSERT INTO t VALUES("Bob", "Orange");
INSERT INTO t VALUES("Bob", "Pear");
INSERT INTO t VALUES("Bob", "Lemon");
INSERT INTO t VALUES("Charlie", "Pear");
INSERT INTO t VALUES("Charlie", "Lemon");

The answer here would be Alice,Bob because they took the exact same items.

I want to do it with double negation (using NOT EXISTS/NOT IN) only which I think is more well-suited to this question, but I couldn't come up with anything that is remotely close to being functional.

This is somewhat similar to this question but I'm using SQLite so I cannot use GROUP_CONCAT().