*SUPPORT*
IN: blicket blicket kiki wif OUT: BLUE YELLOW BLUE
IN: wif OUT: YELLOW
IN: zup kiki blicket OUT: BLUE GREEN
IN: blicket kiki blicket OUT: BLUE BLUE
IN: wif kiki wif tufa OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: wif gazzer blicket OUT: YELLOW BLUE
IN: wif kiki fep OUT: PURPLE YELLOW
IN: zup gazzer wif OUT: GREEN YELLOW
IN: blicket fep kiki zup OUT: BLUE GREEN PURPLE
IN: wif zup gazzer fep OUT: YELLOW GREEN PURPLE
IN: blicket kiki fep OUT: PURPLE BLUE
IN: zup wif kiki fep OUT: GREEN PURPLE YELLOW
IN: fep kiki zup OUT: GREEN PURPLE
IN: zup gazzer fep OUT: GREEN PURPLE

*QUERY*
IN: wif gazzer zup OUT: YELLOW GREEN
IN: zup wif blicket gazzer wif OUT: GREEN YELLOW BLUE YELLOW
IN: blicket kiki zup OUT: GREEN BLUE
IN: fep gazzer blicket OUT: PURPLE BLUE
IN: zup gazzer blicket OUT: GREEN BLUE
IN: fep OUT: PURPLE
IN: wif gazzer fep OUT: YELLOW PURPLE
IN: zup OUT: GREEN
IN: blicket OUT: BLUE
IN: zup tufa OUT: GREEN GREEN GREEN

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