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

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

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