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

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

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