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

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

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