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

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

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