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

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

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