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

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

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