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

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

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