table mafSummary "Positions and scores for alignment blocks" ( string chrom; "Reference sequence chromosome or scaffold" uint chromStart; "Start position in chromosome" uint chromEnd; "End position in chromosome" string src; "Sequence name or database of alignment" float score; "Floating point score." char[1] leftStatus; "Gap/break annotation for preceding block" char[1] rightStatus; "Gap/break annotation for following block" )