*SUPPORT*
IN: blicket fep tufa OUT: GREEN PINK
IN: kiki tufa fep tufa OUT: YELLOW GREEN GREEN
IN: tufa wif tufa wif dax blicket fep blicket OUT: GREEN GREEN RED PINK PINK
IN: kiki OUT: YELLOW
IN: tufa kiki kiki fep tufa OUT: GREEN YELLOW GREEN YELLOW
IN: blicket OUT: PINK
IN: dax fep dax zup tufa blicket fep tufa OUT: GREEN GREEN PINK RED RED
IN: kiki fep blicket OUT: PINK YELLOW
IN: tufa wif tufa fep dax OUT: GREEN RED GREEN
IN: dax fep dax OUT: RED RED
IN: kiki fep kiki OUT: YELLOW YELLOW
IN: tufa fep tufa OUT: GREEN GREEN
IN: kiki fep dax wif blicket OUT: RED YELLOW PINK
IN: dax fep tufa OUT: GREEN RED

*QUERY*
IN: blicket fep kiki OUT: YELLOW PINK
IN: tufa fep kiki OUT: YELLOW GREEN
IN: dax dax OUT: RED RED
IN: tufa dax wif tufa fep tufa zup tufa OUT: GREEN GREEN RED GREEN GREEN
IN: tufa tufa wif kiki fep tufa OUT: GREEN GREEN GREEN YELLOW
IN: tufa OUT: GREEN
IN: tufa kiki tufa blicket fep kiki OUT: GREEN YELLOW GREEN YELLOW PINK
IN: tufa fep blicket OUT: PINK GREEN
IN: dax fep kiki OUT: YELLOW RED
IN: blicket tufa OUT: PINK GREEN

*GRAMMAR*
tufa -> GREEN 
 blicket -> PINK 
 dax -> RED 
 kiki -> YELLOW 
 x1 zup x2 -> [x2] [x1] 
 u1 fep u2 -> [u2] [u1] 
 x1 wif x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 