Prompt 1
========
I will propose to you a list of metadata with related acceptable values. The metadata describe some features of metallic fasteners.
The format of the metadata is:
Metadatum: <name of metadatum>
Values: <comma delimited list of values>
Example of question: <an example of question that a human can do in natural language>
Correct answer: <list of metadata contained in the question with their respective value(s)>
The difficulty is that a human will not put the metadata names in the query. For example, if  thread_code defines the type of thread in a bolt, a human would never say "find bolts with thread_code = M3". They will instead ask "find all M3 bolts".

Prompt 2
========
Metadatum: fasteners
Values: bolt, nut, rivet, screw, securing element, threaded plug, threaded rod, washer
Example of question: find all bolts
Correct answer: {fastener:bolt}

Metadatum: material
Values: steel, iron, copper, brass
Example of question: retrieve fasteners in brass
Correct answer: {material:brass}

Metadatum: turned_stamped
Values: turned, stamped
Example of question: get all the steel nuts stamped
Correct answer: {fastener:nut material:steel turned_stamped:stamped}

Metadatum: is_coated
Values: coated, non coated
Example of question: get all screws in copper non coated
Correct answer: {fastener:screw material:copper is_coated:non coated}


Specialized metadata when metadatum fasteners = bolt

Metadatum: thread_type
Values: M<integer from 1 to 32>, ISO<integer from 1 to 32>, ANSI <any possible ANSI code for threads>
Example of question: search all the bolts with thread 0-80 2B
Correct answer: {fastener:bolt thread_type:ANSI 0-80 2B}

Metadatum: head_type
Values: eye, cylinder, button, countersunk, round, ring, pan, winged, T-head, raised countersunk, knurled, none
Example of question: find M4 bolts with countersunk head
Correct answer: {fastener:bolt thread_type:M4, head_type:countersunk}

Metadatum: slot type
Values: Straight, Phillips, Cross, Square, Torx, Hex, Pozi-drive, Robertson, Tri-wings, Spanner, Clutch, JIS, Pentalobe
Example of question: find M3 Torx bolts in copper with cylindrical head 
Correct answer: {fastener:bolt thread_type:M3, head_type:cylindrical, slot_type:Torx}

Specialized metadata when "fasteners" = nut

Metadatum: thread_type
Values: M<integer from 1 to 32>, ISO<integer from 1 to 32>, ANSI <any possible ANSI code for threads>
Example of question: find M6 nuts
Correct answer: {fastener:nut thread_type:M6}

Metadatum: nut_type
Values: hexagon, flanged, capped, winged, caged, knurled, castellated, squared, grooved, ringed, with washer, drive-in
Example of question: find flanged M8 nuts
Correct answer: {fastener:nut thread_type:M8 nut_type:flanged}

Specialized metadata when "fasteners" = washer
Metadatum: washer_type
Values: Standard, rosette (also called countersunk), sealing, squared, conical, contact disk
Example of question: check if the database contains squared or conical copper washers
Correct answer: {fastener:washer material:copper washer_type:squared,conical}

Metadatum: diameter_ext
Values: <real from 1 to 50>
Example: find steel washers with external diameter 22
Correct answer: {fastener:washer material:steel diameter_ext:22}

Metadatum: diameter_int
Values: <real from 1 to 50>
Example: find iron washers with external diameter 22 and internal 10, and stamped
Correct answer: {fastener:washer material:iron turned_stamped stamped, diameter_ext:22, diameter_int:10}

Metadatum: is_knurled
Values: knurled, not knurled
Example: extract from DB all knurled washer in steel
Correct answer: {fastener:washer material:steel is_knurled:knurled}

Prompt 3
========
I will pass you some new questions. Can you now extract the metadata and their values? I would get the answers in format {metadatum: comma-delimited values}, for example: {fasteners: nut, washer}