[If] a vineyard was destroyed — if there are [still] to be found in it ten vines per beis se’ah and they are planted in the correct configuration, this is called a ‘‘poor vineyard.’’ [If] a vineyard was planted chaotically — if it is possible to align two opposite three, then this is a vineyard; if not, it is not a vineyard. R’ Meir says: Since it resembles the structure of vineyards, it is a vineyard.