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

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

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