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

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

*GRAMMAR*
zup -> GREEN 
 fep -> PINK 
 dax -> YELLOW 
 lug -> PURPLE 
 u1 wif u2 -> [u1] [u2] 
 x1 tufa x2 -> [x2] [x1] 
 u1 kiki -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 