*SUPPORT*
IN: tufa blicket dax kiki wif blicket OUT: BLUE GREEN GREEN PURPLE
IN: zup OUT: RED
IN: blicket fep zup OUT: RED GREEN
IN: kiki dax tufa kiki blicket wif zup OUT: PURPLE BLUE PURPLE RED GREEN
IN: kiki fep tufa OUT: BLUE PURPLE
IN: kiki blicket dax tufa blicket fep zup OUT: PURPLE GREEN BLUE RED GREEN
IN: blicket blicket OUT: GREEN GREEN
IN: blicket fep tufa OUT: BLUE GREEN
IN: zup wif kiki OUT: PURPLE RED
IN: blicket wif tufa OUT: BLUE GREEN
IN: tufa OUT: BLUE
IN: kiki OUT: PURPLE
IN: zup dax zup fep blicket OUT: RED GREEN RED
IN: blicket dax blicket fep tufa OUT: GREEN BLUE GREEN

*QUERY*
IN: kiki fep kiki OUT: PURPLE PURPLE
IN: kiki wif kiki OUT: PURPLE PURPLE
IN: tufa fep blicket OUT: GREEN BLUE
IN: blicket OUT: GREEN
IN: blicket fep blicket OUT: GREEN GREEN
IN: zup fep zup OUT: RED RED
IN: blicket wif zup OUT: RED GREEN
IN: kiki wif tufa OUT: BLUE PURPLE
IN: zup fep tufa OUT: BLUE RED
IN: tufa wif blicket OUT: GREEN BLUE

*GRAMMAR*
zup -> RED 
 tufa -> BLUE 
 blicket -> GREEN 
 kiki -> PURPLE 
 u1 fep u2 -> [u2] [u1] 
 u1 wif u2 -> [u2] [u1] 
 u1 dax x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 