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

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

*GRAMMAR*
wif -> BLUE 
 gazzer -> GREEN 
 fep -> PURPLE 
 dax -> RED 
 u1 kiki -> [u1] [u1] 
 x1 zup x2 -> [x2] [x2] [x1] 
 u1 tufa u2 -> [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 