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

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

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