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 oscuridad que envolvía a toda la isla presagiaba el fin del año y tal vez el fin del mundo.
Postion	Tokenization
1	La
2	oscuridad
3	que
4	envolvía
5	a
6	toda
7	la
8	isla
9	presagiaba
10	el
11	fin
12	del
13	año
14	y
15	tal
16	vez
17	el
18	fin
19	del
20	mundo
21	.
Position	Tokenization	UPOS	Head	Deprel
1	La	DET	2	det
2	oscuridad	NOUN	9	nsubj
3	que	PRON	4	nsubj
4	envolvía	VERB	2	acl
5	a	ADP	8	case
6	toda	DET	7	det
7	la	DET	8	det
8	isla	NOUN	4	obj
9	presagiaba	VERB	0	root
10	el	DET	11	det
11	fin	NOUN	9	obj
12	del	ADP	13	case
13	año	NOUN	11	nmod
14	y	CCONJ	18	cc
15	tal	NOUN	18	advmod
16	vez	NOUN	15	fixed
17	el	DET	18	det
18	fin	NOUN	11	conj
19	del	ADP	20	case
20	mundo	NOUN	18	nmod
21	.	PUNCT	9	punct