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

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

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