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

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

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