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

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

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