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

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

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