are given by $w_{i_1} = w_{i_2} = \ldots = w_{i_{t - 1}} = w$, $w_{j_ t} = 2w$, $a_{i_ ji_{j + 1}} = w$ for $j < t - 1$, $a_{i_{t - 1}i_ t} = 2w$, and $a_{i_ ji_ k} = 0$ if $k > j + 1$, or

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