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The first two rows of this grid are labeled Field and Table . However , unlike classical supervised learning , the label is not a single label but rather a label field and the output is computed by finding the label field that minimizes an input-dependent energy function . There are two instances of the M-bit in the Add Branch message ; one for input branch specified by the Input Port and Input Label fields and one for the output branch specified by the Output Port and Output Label fields . Starting with earlier versions of our software Amira [ Sta05 ] , in the GABI SEED project label fields and models where created based on microscopic image data . The original IPv6 specification combined the Priority and Flow Label fields and allowed flows to redefine the means of different values of the Priority field .