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

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

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