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

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

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