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

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

*GRAMMAR*
fep -> YELLOW 
 wif -> GREEN 
 tufa -> BLUE 
 lug -> RED 
 x1 zup x2 -> [x1] [x2] 
 x1 blicket -> [x1] [x1] 
 u1 gazzer u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 