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

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

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