As a helpful and smart assistant, your task is to parse a given text in any language to Universal Dependency (UD) format including POS tags and dependency relations (HEAD and DEPREL).
Key Components of UD Annotation:
1. Tokens: The fundamental units within UD are tokens. These can be individual words, punctuation marks, or even parts of multi-word expressions. Each token has several associated attributes.
2. UPOS Tags: The UPOS field in the CoNLL-U format represents the universal part-of-speech tag assigned to each word. This tag is part of a universal POS tag set designed to be applicable across different languages. The UPOS tags include categories such as NOUN, VERB, ADJ (adjective), ADV (adverb), PRON (pronoun), DET (determiner), and more. 
3. Dependency Relations: Dependency relations are the core of the syntactic representation. They form a tree structure over the tokens in a sentence. Here's how they work:
    - HEAD: This field indicates the head of the current word. The head is the word that the current word is connected to in the dependency parse tree. The value is an integer that corresponds to the ID of the head word within the same sentence. A value of zero (0) indicates that the word is the root of the sentence.
    - DEPREL: The DEPREL field specifies the type of dependency relation between the current word and its head (as specified in the HEAD field). The value is a universal dependency relation or a language-specific subtype of such a relation.
Note: Blank lines are used to mark the boundaries between sentences.
Example:
Let's analyze this sentence with its UD annotation:
"The big dog chased the cat."
1. Tokenization:
- The
- big
- dog
- chased
- the
- cat
- .
2. UPOS Tags:
- The: DET
- big: ADJ
- dog: NOUN
- chased: VERB
- the: DET
- cat: NOUN
- .: PUNCT
3. Head node (parent):
- The: the parent of this word is "dog" at position 3
- big: the parent of this word is "dog" at position 3
- dog: the parent of this word is "chased" at position 4
- chased: this is the root node, therefore its head is 0
- the: the parent of this word is "cat" at position 6
- cat: the parent of this word is "chased" at position 4
- .: the parent of this word is "chased" at position 4
3. Dependency Relations:
- root(ROOT, chased)
- det(dog, The)
- amod(dog, big)
- nsubj(chased, dog)
- det(cat, the)
- obj(chased, cat)
Combining the above annotations, the final output in UD format is:
Position	Tokenization	UPOS	Head	Deprel
1	The	DET	3	det
2	big	ADJ	3	amod
3	dog	NOUN	4	nsubj
4	chased	VERB	0	ROOT
5	the	DET	6	det
6	cat	NOUN	4	obj
7	.	PUNCT	4	punct
Generate UD annotations for the following tokenized text:
La Comisión del Sistema Eléctrico Nacional (CSEN), sin embargo, considera que la rebaja es inferior a la anunciada por el Gobierno y la sitúa en el 2,1%.
Postion	Tokenization
1	La
2	Comisión
3	del
4	Sistema
5	Eléctrico
6	Nacional
7	(
8	CSEN
9	)
10	,
11	sin
12	embargo
13	,
14	considera
15	que
16	la
17	rebaja
18	es
19	inferior
20	a
21	la
22	anunciada
23	por
24	el
25	Gobierno
26	y
27	la
28	sitúa
29	en
30	el
31	2,1%
32	.
Position	Tokenization	UPOS	Head	Deprel
1	La	DET	2	det
2	Comisión	PROPN	14	nsubj
3	del	ADP	4	case
4	Sistema	PROPN	2	flat
5	Eléctrico	PROPN	4	flat
6	Nacional	PROPN	4	flat
7	(	PUNCT	8	punct
8	CSEN	PROPN	2	flat
9	)	PUNCT	8	punct
10	,	PUNCT	11	punct
11	sin	ADP	14	advmod
12	embargo	NOUN	11	fixed
13	,	PUNCT	11	punct
14	considera	VERB	0	root
15	que	SCONJ	19	mark
16	la	DET	17	det
17	rebaja	NOUN	19	nsubj
18	es	AUX	19	cop
19	inferior	ADJ	14	ccomp
20	a	ADP	22	case
21	la	DET	22	det
22	anunciada	ADJ	19	amod
23	por	ADP	25	case
24	el	DET	25	det
25	Gobierno	PROPN	22	obj
26	y	CCONJ	28	cc
27	la	PRON	28	obj
28	sitúa	VERB	14	conj
29	en	ADP	31	case
30	el	DET	31	det
31	2,1%	SYM	28	iobj
32	.	PUNCT	14	punct