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

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

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