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

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

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