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How to plot time series graph with categories in Google Spreadheets?

I've got data in Google Spreadsheet, with columns as follows: DD.MM.YYYY CATEGORY COUNTER_1 COUNTER_2 For example: 22.12.2010 APPLES 1 20 23.12.2010 APPLES 100 20 23.12.2010 ORANGES 32 12 ...