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

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

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