samples	avoid1	temperature	diet	region	stacked_bar!X	stacked_bar!Y	stacked_bar!Z
s01	100	hot	high_fat	A	1	2	3
s02	200	cold	high_fat	B	2	3	1
s03	300	really_cold	low_fat		3	1	2
s04	300	really_hot	low_fat	B	3	1	2
