consider the dimensional patterns $($where each pattern is represented by features $1,$ feature $2,$ the class : $(1,1,1),(1,2,1),(1,3,1,),(2,1,1),(2,2,1),(2,3,1),(2,3\mathrm{.}5,1),(2\mathrm{.}5,2,1),(3\mathrm{.}5,1,1),(3\mathrm{.}5,2,1),,(3\mathrm{.}5,3,2),(3\mathrm{.}5,4,2),$