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

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

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