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

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

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