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

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

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