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

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

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