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

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

*GRAMMAR*
lug -> YELLOW 
 gazzer -> BLUE 
 wif -> RED 
 dax -> GREEN 
 x1 tufa x2 -> [x2] [x1] 
 u1 kiki x1 -> [u1] [x1] 
 u1 fep x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 