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

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

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