$C_{k}$	$A_{i}$	Product price	product quality	service
$C_{1}$	$A_{1}$	$([0.70, 0.80], [0.15, 0.20])$	$([0.65, 0.80], [0.10, 0.15])$	$([0.80, 0.85], [0.12, 0.15])$
	$A_{2}$	$([0.65, 0.70], [0.25, 0.30])$	$([0.56, 0.60], [0.22, 0.25])$	$([0.80, 0.83], [0.10, 0.14])$
	$A_{3}$	$([0.80, 0.82], [0.10, 0.16])$	$([0.85, 0.90], [0.05, 0.10])$	$([0.70, 0.75], [0.20, 0.25])$
	$A_{4}$	$([0.75, 0.80], [0.15, 0.20])$	$([0.70, 0.75], [0.15, 0.20])$	$([0.70, 0.70], [0.20, 0.25])$
$C_{2}$	$A_{1}$	$([0.55, 0.65], [0.20, 0.25])$	$([0.78, 0.80], [0.10, 0.15])$	$([0.65, 0.70], [0.22, 0.24])$
	$A_{2}$	$([0.62, 0.65], [0.28, 0.35])$	$([0.69, 0.75], [0.15, 0.20])$	$([0.66, 0.70], [0.22, 0.25])$
	$A_{3}$	$([0.56, 0.60], [0.22, 0.25])$	$([0.80, 0.85], [0.12, 0.15])$	$([0.67, 0.75], [0.22, 0.25])$
	$A_{4}$	$([0.60, 0.65], [0.30, 0.35])$	$([0.73, 0.75], [0.15, 0.20])$	$([0.85, 0.90], [0.05, 0.10])$
$C_{3}$	$A_{1}$	$([0.80, 0.85], [0.10, 0.15])$	$([0.85, 0.90], [0.05.0.10])$	$([0.70, 0.75], [0.10, 0.20])$
	$A_{2}$	$([0.20, 0.30], [0.30, 0.40])$	$([0.23, 0.45], [0.22, 0.35])$	$([0.15, 0.35], [0.30, 0.40])$
	$A_{3}$	$([0.50, 0.60], [0.30, 0.40])$	$([0.55, 0.65], [0.25, 0.30])$	$([0.60, 0.65], [0.10, 0.20])$
	$A_{4}$	$([0.30, 0.43], [0.20, 0.35])$	$([0.10, 0.30], [0.25, 0.45])$	$([0.26, 0.35], [0.05, 0.10])$