Is "TypeRef" in "STEP.g4" right?

[349516385]

I used STEP.g4 to parse a stp file.A line in the 'DATA;' like this:

#10=SHAPE_REPRESENTATION_RELATIONSHIP('None','relationship between roheED7B45q6-None and roheED7B45q6-None',#22,#11);

"SHAPE_REPRESENTATION_RELATIONSHIP" is a "TypeRef" (whichi is difined in the "STEP.g4") while

TypeRef
	: CapitalLetter (CapitalLetter|Digit)*

They are not matched.

Where is wrong?Thanks a lot.

And it seems that the folloing sentence is not defiend in the grammar file ?

#209571=(LENGTH_UNIT()NAMED_UNIT(*)SI_UNIT(.MILLI.,.METRE.));