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

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

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