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

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

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