Resolve "enable space in identifer"

Errors occur when there is a space in the identifier. It is preferable to enable spaces.

This works:

query = """AIRCRAFT(AIRCRAFTTYPE("B737-MAX-8"))"""
dsl = EntityQueryLanguage(entities)
result, hyp = dsl.execute(query)

This does not work:

query = """AIRCRAFT (AIRCRAFTTYPE ("B737 MAX 8"))"""
dsl = EntityQueryLanguage(entities)
result, hyp = dsl.execute(query)