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

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

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