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

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

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