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

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

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