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:
Stíhací letoun české armády MiG- 21, byť po modernizačních úpravách, nemusí být podle názoru zbrojařů přijat pro službu v NATO.
Postion	Tokenization
1	Stíhací
2	letoun
3	české
4	armády
5	MiG
6	-
7	21
8	,
9	byť
10	po
11	modernizačních
12	úpravách
13	,
14	nemusí
15	být
16	podle
17	názoru
18	zbrojařů
19	přijat
20	pro
21	službu
22	v
23	NATO
24	.
Position	Tokenization	UPOS	Head	Deprel
1	Stíhací	ADJ	2	amod
2	letoun	NOUN	14	nsubj
3	české	ADJ	4	amod
4	armády	NOUN	2	nmod
5	MiG	PROPN	4	nmod
6	-	PUNCT	7	punct
7	21	NUM	5	nummod
8	,	PUNCT	12	punct
9	byť	SCONJ	12	mark
10	po	ADP	12	case
11	modernizačních	ADJ	12	amod
12	úpravách	NOUN	2	dep
13	,	PUNCT	12	punct
14	nemusí	VERB	0	root
15	být	AUX	19	aux:pass
16	podle	ADP	17	case
17	názoru	NOUN	19	obl
18	zbrojařů	NOUN	17	nmod
19	přijat	ADJ	14	obj
20	pro	ADP	21	case
21	službu	NOUN	19	obl
22	v	ADP	23	case
23	NATO	PROPN	21	nmod
24	.	PUNCT	14	punct