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

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

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