{{1,2,3,4}}
{{1,2},{3,4}}
{{1,4},{2,3,4}}
{{1,3,4},{2,3,4}}
{{1,2},{1,3,4},{2,3,4}}
{{1,3},{1,4},{2,3,4}}
{{1,3},{2,4},{3,4}}
{{1,4},{2,4},{3,4}}
{{1,2,4},{1,3,4},{2,3,4}}
{{1,2},{1,3},{1,4},{2,3,4}}
{{1,2},{1,3},{2,4},{3,4}}
{{1,4},{2,3},{2,4},{3,4}}
{{1,2,3},{1,2,4},{1,3,4},{2,3,4}}
{{1,3},{1,4},{2,3},{2,4},{3,4}}
{{1,2},{1,3},{1,4},{2,3},{2,4},{3,4}}