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

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

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