*SUPPORT*
IN: fep kiki fep gazzer kiki OUT: BLUE GREEN GREEN BLUE
IN: kiki lug blicket zup kiki OUT: GREEN GREEN RED GREEN
IN: wif kiki lug wif OUT: YELLOW GREEN YELLOW
IN: blicket OUT: RED
IN: fep zup fep OUT: BLUE BLUE BLUE
IN: fep lug fep gazzer fep OUT: BLUE BLUE BLUE
IN: wif lug blicket zup wif OUT: YELLOW YELLOW RED YELLOW
IN: kiki lug kiki zup fep OUT: GREEN BLUE GREEN BLUE
IN: fep lug wif fep lug wif zup kiki OUT: BLUE YELLOW BLUE GREEN YELLOW GREEN
IN: kiki OUT: GREEN
IN: blicket gazzer blicket OUT: RED RED
IN: kiki zup fep OUT: BLUE GREEN BLUE
IN: wif gazzer blicket OUT: RED YELLOW
IN: wif zup wif OUT: YELLOW YELLOW YELLOW

*QUERY*
IN: wif zup kiki OUT: GREEN YELLOW GREEN
IN: wif wif gazzer blicket OUT: YELLOW RED YELLOW
IN: fep fep gazzer kiki OUT: BLUE GREEN BLUE
IN: fep kiki OUT: BLUE GREEN
IN: blicket gazzer wif OUT: YELLOW RED
IN: wif lug fep OUT: YELLOW BLUE
IN: blicket zup wif OUT: YELLOW RED YELLOW
IN: wif fep wif OUT: YELLOW BLUE YELLOW
IN: wif fep blicket OUT: YELLOW BLUE RED
IN: wif gazzer kiki OUT: GREEN YELLOW

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