"Beyond SumBasic: Task-focused summarization with sentence simplification and lexical expansion" . "PMC7115785" . . . . "2007-04-19"^^ . "Inf Process Manag" . . . "Brockett, Chris" . "Nenkova, Ani" . . "Vanderwende, Lucy" . "Suzuki, Hisami" . . "no-cc" . "PMC" . "10.1016/j.ipm.2007.01.023" . .