Parse error: Invalid column name (Query to Google Spreadsheet via GDATA API)

Need to use lowercase. See this thread Re: How I can upload and edit the spreadsheet using same session token? - Jochen Hartmann (Google) - com.googlegroups.google-docs-data-apis - MarkMail:

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Hamburger in pizza bun (corrected by someone as Ciabatta bread), the party at m's med school mentor's.