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

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

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