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

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

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