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

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

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