Theme Will Tear Us Apart Again

But in Halliday ± Matthiessen (1985, 1994, 2004, 2014), in cases of predicated Theme, the embedded clause is also analysed for Theme:

Decoding And Encoding The Self

Direction Of Coding And Agency

A decoding identifying clause can be middle or effective:

but an encoding identifying clause is always effective:

Decoding vs Encoding Interrogatives

'Show' As Material Process Embedded In Encoding Relational Clause

The verb show also serves as a relational or verbal Process.

Blowin' In The Wind

Role As Identifier Value

The "Agency" Of Genes

The Existence Of Words

'Lead' As Circumstantial Identifying Process

Identifying Clause Without Medium (Identified Token)

An Enclosed Structurally Unrelated Clause

Mr Minter, 'Call me Ted', was  a large, untidy, perpetually smiling man with the look of an astute rabbit.

— John Mortimer Rumpole And The Asylum Seekers

One way to analyse the enclosed clause as structurally related is to take the view from below. Because it is realised as its own tone group (TONALITY) and realised by tone concord with what precedes (TONE), the enclosed clause is realised as if it were in non-defining elaborating relationship with the surrounding clause. Such an interpretation, though, requires treating the clause that projected it as ellipsed.

Chemical Symbolism vs Chemical Names

Chemical Equations

Decoding H₂O

Decoding A Text By Reference To A Variety Expression

Decoding Revolution

Saussurean Sign As Expression-Content Metaphor

Identifying Clause With Depictive Attribute?

Being Macbeth drunk:

Doing Macbeth drunk:

Same Wording, Different Transitivity