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:
Když na nás při demonstracích stříkala vodu, honila nás po náměstích a hrozila nám obušky, volali jsme na ni: vy nejste Češi.
Postion	Tokenization
1	Když
2	na
3	nás
4	při
5	demonstracích
6	stříkala
7	vodu
8	,
9	honila
10	nás
11	po
12	náměstích
13	a
14	hrozila
15	nám
16	obušky
17	,
18	volali
19	jsme
20	na
21	ni
22	:
23	vy
24	nejste
25	Češi
26	.
Position	Tokenization	UPOS	Head	Deprel
1	Když	SCONJ	6	mark
2	na	ADP	3	case
3	nás	PRON	6	obl:arg
4	při	ADP	5	case
5	demonstracích	NOUN	6	obl
6	stříkala	VERB	18	advcl
7	vodu	NOUN	6	obj
8	,	PUNCT	9	punct
9	honila	VERB	6	conj
10	nás	PRON	9	obj
11	po	ADP	12	case
12	náměstích	NOUN	9	obl
13	a	CCONJ	14	cc
14	hrozila	VERB	6	conj
15	nám	PRON	14	obl:arg
16	obušky	NOUN	14	obl:arg
17	,	PUNCT	6	punct
18	volali	VERB	0	root
19	jsme	AUX	18	aux
20	na	ADP	21	case
21	ni	PRON	18	obl:arg
22	:	PUNCT	25	punct
23	vy	PRON	25	nsubj
24	nejste	AUX	25	cop
25	Češi	PROPN	18	ccomp
26	.	PUNCT	18	punct