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

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

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