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

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

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