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

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

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