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

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

*GRAMMAR*
tufa -> GREEN 
 zup -> RED 
 wif -> BLUE 
 kiki -> PINK 
 u1 lug u2 -> [u2] [u1] [u1] 
 x1 fep -> [x1] [x1] [x1] [x1] [x1] [x1] 
 u1 dax -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 