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

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

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