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 text: Rusové, kteří přišli do republiky v 50. až 70. letech a tvoří dnes třetinu z 1.6 milionu obyvatel, musejí tudíž o občanství žádat.
Position	Tokenization	UPOS	Head	Deprel
1	Rusové	PROPN	23	nsubj
2	,	PUNCT	4	punct
3	kteří	DET	4	nsubj
4	přišli	VERB	1	acl:relcl
5	do	ADP	6	case
6	republiky	NOUN	4	obl
7	v	ADP	13	case
8	50	NUM	13	nummod
9	.	PUNCT	8	punct
10	až	CCONJ	11	cc
11	70	NUM	8	conj
12	.	PUNCT	11	punct
13	letech	NOUN	4	obl
14	a	CCONJ	15	cc
15	tvoří	VERB	4	conj
16	dnes	ADV	15	advmod
17	třetinu	NUM	15	obj
18	z	ADP	20	case
19	1.6	NUM	20	nummod:gov
20	milionu	NOUN	17	nmod
21	obyvatel	NOUN	20	nmod
22	,	PUNCT	4	punct
23	musejí	VERB	0	root
24	tudíž	CCONJ	23	advmod
25	o	ADP	26	case
26	občanství	NOUN	27	obl:arg
27	žádat	VERB	23	xcomp
28	.	PUNCT	23	punct