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

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

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