*SUPPORT*
IN: dax kiki OUT: RED RED RED RED RED RED RED RED
IN: lug dax OUT: GREEN RED
IN: wif wif OUT: BLUE BLUE
IN: lug gazzer wif zup dax OUT: RED BLUE BLUE GREEN
IN: lug zup tufa OUT: YELLOW GREEN GREEN
IN: lug kiki OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: wif OUT: BLUE
IN: dax tufa OUT: RED YELLOW
IN: tufa kiki OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: tufa gazzer wif lug gazzer tufa OUT: BLUE YELLOW GREEN YELLOW
IN: dax gazzer dax OUT: RED RED
IN: wif zup wif OUT: BLUE BLUE BLUE
IN: tufa gazzer wif OUT: BLUE YELLOW
IN: tufa OUT: YELLOW

*QUERY*
IN: lug wif OUT: GREEN BLUE
IN: wif gazzer wif OUT: BLUE BLUE
IN: lug OUT: GREEN
IN: wif gazzer dax OUT: RED BLUE
IN: tufa dax dax wif OUT: YELLOW RED RED BLUE
IN: lug gazzer dax OUT: RED GREEN
IN: dax OUT: RED
IN: dax dax gazzer lug zup tufa OUT: YELLOW RED GREEN RED RED GREEN RED
IN: tufa gazzer wif zup wif OUT: BLUE BLUE BLUE YELLOW
IN: wif kiki OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE

*GRAMMAR*
wif -> BLUE 
 dax -> RED 
 tufa -> YELLOW 
 lug -> GREEN 
 u1 gazzer x1 -> [x1] [u1] 
 x1 zup u1 -> [u1] [x1] [x1] 
 u1 kiki -> [u1] [u1] [u1] [u1] [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 