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

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

*GRAMMAR*
dax -> YELLOW 
 zup -> RED 
 fep -> PURPLE 
 tufa -> GREEN 
 u1 gazzer x1 -> [x1] [u1] [x1] 
 u1 wif u2 -> [u1] [u2] 
 u1 kiki x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 