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

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

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