*SUPPORT*
IN: fep dax fep OUT: PURPLE PURPLE
IN: gazzer blicket wif tufa OUT: YELLOW GREEN GREEN RED GREEN
IN: tufa blicket dax blicket OUT: GREEN RED RED
IN: gazzer dax fep OUT: YELLOW PURPLE
IN: blicket wif tufa OUT: GREEN GREEN RED GREEN
IN: gazzer kiki blicket dax tufa OUT: RED GREEN YELLOW YELLOW YELLOW
IN: gazzer OUT: YELLOW
IN: blicket dax tufa OUT: RED GREEN
IN: tufa dax fep OUT: GREEN PURPLE
IN: tufa wif fep OUT: PURPLE PURPLE GREEN PURPLE
IN: fep dax blicket kiki blicket OUT: RED PURPLE RED PURPLE RED PURPLE RED
IN: fep dax blicket OUT: PURPLE RED
IN: tufa dax tufa OUT: GREEN GREEN
IN: tufa dax blicket OUT: GREEN RED

*QUERY*
IN: fep OUT: PURPLE
IN: fep wif fep OUT: PURPLE PURPLE PURPLE PURPLE
IN: gazzer tufa fep dax gazzer OUT: YELLOW GREEN PURPLE YELLOW
IN: tufa wif blicket OUT: RED RED GREEN RED
IN: fep wif gazzer OUT: YELLOW YELLOW PURPLE YELLOW
IN: blicket OUT: RED
IN: blicket kiki gazzer OUT: YELLOW RED RED RED
IN: blicket dax fep OUT: RED PURPLE
IN: tufa blicket tufa OUT: GREEN RED GREEN
IN: tufa OUT: GREEN

*GRAMMAR*
fep -> PURPLE 
 tufa -> GREEN 
 gazzer -> YELLOW 
 blicket -> RED 
 u1 wif u2 -> [u2] [u2] [u1] [u2] 
 x1 kiki x2 -> [x2] [x1] [x1] [x1] 
 u1 dax u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 