SELECT position FROM table_name_50 WHERE nationality = "united states" AND jersey_number_s_ = "12" AND player = "tom black category:articles with hcards"
Apa itu posisi, ketika kewarganegaraan Amerika Serikat, ketika nomor jersey adalah 12, dan ketika pemain Tom Black Category: Artikel dengan kartu?
CREATE TABLE table_name_50 (position VARCHAR, player VARCHAR, nationality VARCHAR, jersey_number_s_ VARCHAR)