Parsing error with sdef

[MicahGale]

Describe the bug

This parsing error was reported

To Reproduce

problem = montepy.read_input("foo.imcnp")

Error Message (if any)

montepy.errors.ParsingError:     tests/models/success/HEU-MET-FAST-076_Case03.imcnp, line 140

       141| sdef cell=2 pos=0 0 -6.351 rad=d3 ext=d4 axs=0 0 1
    tests/models/success/HEU-MET-FAST-076_Case03.imcnp, line 141

    >  141| sdef cell=2 pos=0 0 -6.351 rad=d3 ext=d4 axs=0 0 1
          |      ^^^^ not expected here.
There was an error parsing "cell".
sly: Syntax error at line 1, token=TEXT

MCNP input file snippet

hi
C cells

c surfaces

sdef cell=2 pos=0 0 -6.351 rad=d3 ext=d4 axs=0 0 1

Version

• Version 1.0.0alpha1dev306

Additional context

I need to double check that this is valid syntax. I thought we handled this already.