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

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

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