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

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

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