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

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

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