Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: The Columnist
Product description: PRAISE FOR THE COLUMNIST " The Columnist 's greatest triumph is its narrator's voice: a brilliantly odious blend of cliché, double talk and name-dropping."-- The New York Times Book Review "[Frank] created a character that deserves to jump outside the Beltway and enter the language like 'Uncle Tom,' 'Peter Pan,' or 'Scrooge.' From now on, any ambitious windbag might hear the murmur in his wake: 'There goes a real Sladder'."-- The Christian Science Monitor " The Columnist is one of the sharpest skewerings of a journalist since Evelyn Waugh's Scoop ."-- San Francisco Chronicle, Jeffrey Frank is a senior editor at the New Yorker and was formerly an editor at the Washington Post and the Washington Star. He lives in Manhattan with his wife, Diana.
Product price: $7.59
Product brand: Visit Amazon's Jeffrey Frank Page
Target attributes: Page Count
Answer: attribute: page count
value: None
source: None