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

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

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