[lemma=be] □
[lemma=be] [□]
[lemma=be] □+
Adleman , who was Cohen 's supervisor , was immediately convinced that the idea would work the moment he learned about it . Stompanato was Cohen 's moneyman and twice when he was arrested he was found to be carrying more than $ 50,000 cash . Why is Cohen such a talisman for me ? " A less common approach that both makes BitTorrent harder to grasp , but worthy of study , is Cohen 's use of idempotence .