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

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

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