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

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

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