*SUPPORT*
IN: wif fep kiki OUT: GREEN YELLOW GREEN
IN: gazzer zup fep zup OUT: PINK BLUE BLUE BLUE
IN: zup zup fep kiki OUT: BLUE GREEN BLUE GREEN
IN: gazzer wif gazzer fep kiki OUT: PINK YELLOW GREEN PINK GREEN
IN: wif tufa dax dax OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: kiki fep gazzer OUT: PINK GREEN PINK
IN: kiki zup OUT: GREEN BLUE
IN: zup tufa OUT: BLUE BLUE
IN: zup OUT: BLUE
IN: zup zup fep gazzer OUT: BLUE PINK BLUE PINK
IN: wif tufa OUT: YELLOW YELLOW
IN: kiki dax OUT: GREEN GREEN
IN: gazzer fep zup OUT: BLUE PINK BLUE
IN: kiki tufa dax OUT: GREEN GREEN GREEN GREEN

*QUERY*
IN: gazzer wif tufa OUT: PINK YELLOW YELLOW
IN: gazzer tufa OUT: PINK PINK
IN: kiki zup dax OUT: GREEN BLUE GREEN BLUE
IN: kiki tufa OUT: GREEN GREEN
IN: wif dax OUT: YELLOW YELLOW
IN: zup dax OUT: BLUE BLUE
IN: zup fep gazzer OUT: PINK BLUE PINK
IN: wif OUT: YELLOW
IN: kiki OUT: GREEN
IN: kiki fep zup OUT: BLUE GREEN BLUE

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