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

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

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