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

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

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