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

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

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