. . . "Female"@en . "The Avengers Prelude: Black Widow Strikes"@en . . . . . . . . . . . . . . . . . . "Sofia was a Russian assassin and mercenary who wanted to kill Black Widow in order to take over her mantle."@en . "Sofia (Assassin)"@en . . . . . . . . . . . . . "Sofia"@en . . . . . . . . . "Deceased"@en . . . . . . . . . . . "2011-11-23"^^ . . "Sofia was a Russian assassin and mercenary who wanted to kill Black Widow in order to take over her mantle."@en .