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:
Las gradas del Estadio Olímpico han mantenido el extraordinario aspecto de la apertura a pesar de no alcanzar el lleno de la inauguración, sobre todo en las pruebas vespertinas.
Postion	Tokenization
1	Las
2	gradas
3	del
4	Estadio
5	Olímpico
6	han
7	mantenido
8	el
9	extraordinario
10	aspecto
11	de
12	la
13	apertura
14	a
15	pesar
16	de
17	no
18	alcanzar
19	el
20	lleno
21	de
22	la
23	inauguración
24	,
25	sobre
26	todo
27	en
28	las
29	pruebas
30	vespertinas
31	.
Position	Tokenization	UPOS	Head	Deprel
1	Las	DET	2	det
2	gradas	NOUN	7	nsubj
3	del	ADP	4	case
4	Estadio	PROPN	2	nmod
5	Olímpico	PROPN	4	flat
6	han	AUX	7	aux
7	mantenido	VERB	0	root
8	el	DET	10	det
9	extraordinario	ADJ	10	amod
10	aspecto	NOUN	7	obj
11	de	ADP	13	case
12	la	DET	13	det
13	apertura	NOUN	10	nmod
14	a	ADP	18	mark
15	pesar	NOUN	14	fixed
16	de	ADP	14	fixed
17	no	ADV	18	advmod
18	alcanzar	VERB	7	advcl
19	el	DET	20	det
20	lleno	ADJ	18	obj
21	de	ADP	23	case
22	la	DET	23	det
23	inauguración	NOUN	20	nmod
24	,	PUNCT	25	punct
25	sobre	ADP	18	advmod
26	todo	PRON	25	fixed
27	en	ADP	25	case
28	las	DET	29	det
29	pruebas	NOUN	25	nmod
30	vespertinas	ADJ	29	amod
31	.	PUNCT	7	punct