('入便', 'inside') ('右便', 'right') ('出便', 'outside')

('開便', 'away from the wall') ('後便', 'back') ('前便', 'front')

('上便', 'above') ('下便', 'below') ('裡便', 'inside')

('右便', 'right') ('入便', 'inside') ('出便', 'outside')

('上便', 'above') ('下便', 'below') ('裡便', 'inside')

('左便', 'left') ('外便', 'outside') ('下便', 'below')

('開便', 'away from the wall') ('前便', 'front') ('後便', 'back')

('埋便', 'close to the wall') ('下便', 'below') ('左便', 'left')

('出便', 'outside') ('入便', 'inside') ('右便', 'right')

('裡便', 'inside') ('下便', 'below') ('上便', 'above')