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

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

*GRAMMAR*
zup -> PURPLE 
 kiki -> RED 
 wif -> GREEN 
 lug -> YELLOW 
 x1 fep -> [x1] [x1] 
 x1 blicket x2 -> [x2] [x1] [x1] 
 x1 tufa u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 