Hypotactic Elaborating Clause Nexus With 'As'

It is a large construction	as can be seen from its 15 cloisters, 13 oratories, 86 staircases, 88 fountains, more than 1,600 paintings, 9 towers and 73 sculptures
a	= b

Cf

It is a large construction, which can be seen from its 15 cloisters, 13 oratories, 86 staircases, 88 fountains, more than 1,600 paintings, 9 towers and 73 sculptures

Identifying Clause Of Possession: Benefaction

The hop-on hop-off ticket	allows	you	the freedom to leave and re-join the bus as often as you like
Token	Process: possession	Beneficiary	Value

See Halliday & Matthiessen (2004: 246).

Assigner Realised As Angle: viewpoint

This magical city	is	a must see	for many tourists [[visiting Galicia]]	and	a welcome site	for the many pilgrims [[ending their Camino de Santiago]]
Token	Process	Value	Angle: viewpoint		Value	Angle: viewpoint

cf

Many tourists [[visiting Galicia]]	think	this magical city	a must see	and	the many pilgrims [[ending their Camino de Santiago]]	think	it	a welcome site
Assigner	Process	Token	Value		Assigner	Process	Token	Value

The clauses are identifying rather than attributive because, inter alia, they are reversible:

for many tourists [[visiting Galicia]] a must see is this magical city

for the many pilgrims [[ending their Camino de Santiago]] a welcome site is this magical city

(Note that here each Token attracts the tonic, which means it also functions as Identifier, which means the clauses are encoding not decoding.)