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

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

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