*SUPPORT*
IN: lug OUT: RED
IN: lug dax OUT: RED RED
IN: wif zup wif OUT: BLUE BLUE
IN: tufa fep OUT: PINK PINK
IN: gazzer zup tufa OUT: PURPLE PINK
IN: tufa wif zup lug OUT: PINK BLUE RED
IN: wif lug zup gazzer OUT: BLUE RED PURPLE
IN: gazzer dax OUT: PURPLE PURPLE
IN: tufa zup lug OUT: PINK RED
IN: tufa tufa dax OUT: PINK PINK PINK
IN: gazzer fep OUT: PURPLE PURPLE
IN: wif dax OUT: BLUE BLUE
IN: lug zup wif OUT: RED BLUE
IN: tufa dax OUT: PINK PINK

*QUERY*
IN: lug zup lug OUT: RED RED
IN: lug fep OUT: RED RED
IN: lug wif lug OUT: RED BLUE RED
IN: tufa lug gazzer wif fep OUT: PINK RED PURPLE BLUE BLUE
IN: wif OUT: BLUE
IN: wif fep OUT: BLUE BLUE
IN: tufa tufa zup lug OUT: PINK PINK RED
IN: gazzer zup lug OUT: PURPLE RED
IN: tufa gazzer zup gazzer OUT: PINK PURPLE PURPLE
IN: lug tufa gazzer dax OUT: RED PINK PURPLE PURPLE

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