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

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

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