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

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

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