$3\mathrm{.}5\mathrm{.}1$: List nesting.

Two$-$dimensional list ttt$\_$board represents a $3$x$3$ tic$-$tac$-$toe game board read from input. List ttt$\_$board contains three lists, each representing a row. Each list has three elements representing the three columns on the board. Each element in the tic$-$tac$-$toe game board is $\text{'}$x$\text{'},\text{'}$o$\text{'},$ or $\text{'}-\text{'}.$

Assign match$\_$column$0$ with True if all the elements at column index $0$ are $\text{'}$o$\text{'}.$ Assign match$\_$column$0$ with False otherwise. $568738\mathrm{.}4071468.$qx$3$zqy$7$

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Two$-$dimensional list ttt$\_$board represents a $33$ tic$-$tac$-$toe game board read from input. List ttt$\_$board contains three lists, each

representing a row. Each list has three elements representing the three columns on the board. Each element in the tic$-$tac$-$toe

game board is $\text{'}x\text{'},\text{'}$o$\text{'},$ or $\text{'}-\text{'}.$

Assign match$\_$column$0$ with True if all the elements at column index $0$ are $\text{'}$o$\text{'}.$ Assign match$\_$column$0$ with False otherwise.

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Note: The logical test $(a==\text{'}$o$\text{'}$ and $b==\text{'}$o$\text{'}$ and $c==\text{'}$o$\text{'})$ returns True if $a,b,$ and $c$ are equal to $\text{'}$o$\text{'}.$ The logical test returns False

otherwise.