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: Siloamský kanál je povrchový přivaděč táhnoucí se po boku údolí pod městskými hradbami, ale Warrenova šachta a Hezekiášův tunel jsou podzemní systémy, jejichž konstrukce představuje pro historiky od dob svého objevení v 19. století pořádnou hádanku.
Position	Tokenization	UPOS	Head	Deprel
1	Siloamský	ADJ	2	amod
2	kanál	NOUN	5	nsubj
3	je	AUX	5	cop
4	povrchový	ADJ	5	amod
5	přivaděč	NOUN	0	root
6	táhnoucí	ADJ	5	amod
7	se	PRON	6	expl:pv
8	po	ADP	9	case
9	boku	NOUN	6	obl
10	údolí	NOUN	9	nmod
11	pod	ADP	13	case
12	městskými	ADJ	13	amod
13	hradbami	NOUN	10	nmod
14	,	PUNCT	23	punct
15	ale	CCONJ	23	cc
16	Warrenova	ADJ	17	amod
17	šachta	NOUN	23	nsubj
18	a	CCONJ	20	cc
19	Hezekiášův	ADJ	20	amod
20	tunel	NOUN	17	conj
21	jsou	AUX	23	cop
22	podzemní	ADJ	23	amod
23	systémy	NOUN	5	conj
24	,	PUNCT	27	punct
25	jejichž	DET	26	det
26	konstrukce	NOUN	27	nsubj
27	představuje	VERB	23	acl:relcl
28	pro	ADP	29	case
29	historiky	NOUN	27	obl
30	od	ADP	31	case
31	dob	NOUN	27	obl
32	svého	DET	33	det
33	objevení	NOUN	31	nmod
34	v	ADP	37	case
35	19	NUM	37	nummod
36	.	PUNCT	35	punct
37	století	NOUN	33	nmod
38	pořádnou	ADJ	39	amod
39	hádanku	NOUN	27	obj
40	.	PUNCT	5	punct