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

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

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