Datasets:

jensjepsen
/

esperanto-boolq-questions

orig_idx int64 0 12.7k	split stringclasses 2 values	en_orig stringlengths 20 100	en_preproc stringlengths 21 101	en_eo stringlengths 18 125	en_eo_en stringlengths 13 110	chrf float64 6 99.7	bleu float64 0 93.5	cos_sim float64 0.6 1
0	train	do iran and afghanistan speak the same language	Do Iran and Afghanistan speak the same language?	Ĉu Irano kaj Afganio parolas la saman lingvon?	Do Iran and Afghanistan speak the same language	82.839098	36.555522	0.966161
1	train	do good samaritan laws protect those who help at an accident	Do good Samaritan laws protect those who help at an accident?	Ĉu bonaj leĝoj de la samarianoj protektas tiujn, kiuj helpas en akcidento?	Do good laws of the Samaritans protect those who help in an accident	70.999451	24.712443	0.965826
2	train	is windows movie maker part of windows essentials	Is windows movie maker part of windows essentials?	Ĉu la fenestroj estas parto de la fenestroj, kiuj estas esencaj?	Are the windows part of the windows that are essential	48.30495	9.980099	0.836526
3	train	is confectionary sugar the same as powdered sugar	Is confectionary sugar the same as powdered sugar?	Ĉu sukerpulvoro estas la sama kiel sukerpulvoro?	Is sugar powder the same as sugar powder	43.363107	23.356899	0.929454
4	train	is elder scrolls online the same as skyrim	Is elder scrolls online the same as Skyrim?	Ĉu la pli aĝaj rullibroj estas rete la samaj kiel Skyrim?	Are the older scrolls online the same as Skyrim	78.221917	44.632361	0.940606
5	train	can you use oyster card at epsom station	Can you use oyster card at epsom station?	Ĉu vi povas uzi ostrokarton ĉe la epsom-stacio?	Can you use a oyster card at the epsom station	77.611776	22.957488	0.982868
6	train	will there be a season 4 of da vinci's demons	Will there be a season 4 Of Da Vinci's demons?	Ĉu estos sezono 4 De la demonoj de Da Vinci?	Will it be season 4 Of Da Vinci's Demons	37.127974	9.442944	0.953719
7	train	is the federal court the same as the supreme court	Is the federal court the same as the Supreme Court?	Ĉu la federacia tribunalo estas la sama kiel la kasacia kortumo?	Is the federal court the same as the Supreme Court	79.247823	63.89431	0.950136
8	train	did abraham lincoln write the letter in saving private ryan	Did Abraham Lincoln write the letter in saving private Ryan?	Ĉu Abraham Lincoln skribis la leteron en ŝparado de privata Ryan?	Did Abraham Lincoln write the letter in saving private Ryan	78.662843	51.697315	0.948275
9	train	is batman and robin a sequel to batman forever	Is Batman and Robin a sequel to Batman forever?	Ĉu Batman kaj Robin estas daŭrigo al Batman eterne?	Are Batman and Robin a sequel to Batman forever	71.339724	20.164946	0.966237
10	train	is a wolverine the same as a badger	Is a wolverine the same as a badger?	Ĉu vulverino estas la sama kiel melo?	Is vulverine the same as melo	56.276816	21.649101	0.866183
11	train	will there be a green lantern 2 movie	Will there be a green Lantern 2 movie?	Ĉu estos verda filmo de Lantern 2?	Will there be a green Lantern 2 film	67.08373	36.555522	0.979685
12	train	does the icc has jurisdiction in the united states	Does the Icc has jurisdiction in The United States?	Ĉu la Icc havas jurisdikcion en Usono?	Does the Icc have jurisdiction in the United States	61.347195	19.070828	0.957877
13	train	calcium carbide cac2 is the raw material for the production of acetylene	Calcium Carbide cac2 is the raw material for the production of acetylene?	Kio estas la krudmaterialo por la produktado de acetileno, kiu estas kalcia karbida kac2?	What is the raw material for the production of acetylene, which is calcium carbide kac2	87.153163	55.545703	0.927627
14	train	is there a now you see me 3 coming out	Is there a now you see me 3 coming out?	Ĉu nun vi vidas min 3 eliranta?	Do you see me 3 coming out now	64.778442	55.069531	0.951272
15	train	does a penalty shoot out goal count towards the golden boot	Does a penalty shoot out goal count towards the golden boot?	Ĉu puno pafas celon por kalkuli al la ora boto?	Does punishment shoot a target to count on the gold boot	33.549764	5.604233	0.945354
16	train	will there be a new season of cutthroat kitchen	Will there be a new season of cutthroat kitchen?	Ĉu estos nova sezono de la kuirejo de la kustroato?	Will it be a new season of the kitchen of the coussant	51.876081	33.180774	0.910416
17	train	is jack sikma in the hall of fame	Is Jack Sikma in the hall of fame?	Ĉu Jack Sikma estas en la famhalo?	Is Jack Sikma in the hall of fame	74.645873	51.697315	0.966828
18	train	can elves and humans mate lord of the rings	Can elves and humans mate Lord of the rings?	Ĉu elfoj kaj homoj povas parigi Sinjoron de la ringoj?	Can Elves and Men pair the Lord of the Rings	39.981875	9.287529	0.922131
19	train	the boy in the plastic bubble based on true story	The boy in the plastic bubble based on true story?	La knabo en la plasta veziko bazita sur vera rakonto?	The boy in the plastic bubble based on a real story	80.156795	59.004687	0.975239
20	train	science begins with the premise that knowledge should first be acquired through observation	Science begins with the premise that knowledge should first be acquired through observation?	Scienco komenciĝas per la kondiĉo ke scio unue devus esti akirita tra observado?	Science begins with the premise that knowledge should first be obtained through observation	87.947564	70.160359	0.981175
21	train	is tim brown in the hall of fame	Is Tim Brown in the hall of fame?	Ĉu Tim Brown estas en la famhalo?	Is Tim Brown in the hall of fame	75.872592	51.697315	0.951904
22	train	can you drink alcohol in public in denmark	Can you drink alcohol in public in Denmark?	Ĉu vi povas trinki alkoholon publike en Danio?	Can you drink alcohol in Denmark in public	77.846854	41.113362	0.966124
23	train	is jersey currency legal tender in the uk	Is Jersey currency legal tender in the Uk?	Ĉu la valuto de Jersey estas laŭleĝa pagilo en la Uk?	Is Jersey's currency a legal tender in the Uk	67.278987	31.559845	0.951818
24	train	have the milwaukee bucks ever won a championship	Have the Milwaukee bucks ever won a championship?	Ĉu la Milvokiaj dolaroj iam venkis en ĉampioneco?	Have the Milwaukee dollars ever won a championship	70.250681	36.555522	0.947314
25	train	does the world cup final go to penalties	Does the world Cup final go to penalties?	Ĉu la finalo de la Mondpokalo iras al punoj?	Is the World Cup Final going to penalties	50.471094	12.223076	0.953738
26	train	is kingdom manga based on a true story	Is Kingdom Manga based on a true story?	Ĉu Kingdom Manga estas bazita sur vera rakonto?	Is Kingdom Manga based on a real story	55.111383	22.089591	0.96004
27	train	is croatia part of the european economic area	Is Croatia part of the European economic area?	Ĉu Kroatio estas parto de la eŭropa ekonomia areo?	Is Croatia part of the European economic area	81.853824	25.848658	0.945657
28	train	can u marry a dead person in france	Can u marry a dead person in France?	Ĉu vi povas edziĝi al mortinto en Francio?	Can you marry a dead man in France	48.868208	22.089591	0.960788
29	train	is saline and sodium chloride the same thing	Is saline and sodium chloride the same thing?	Ĉu salo kaj natria klorido estas la sama aĵo?	Is salt and sodium chloride the same thing	82.341992	68.037493	0.955273
30	train	is there a treatment for the bubonic plague	Is there a treatment for the bubonic plague?	Ĉu estas kuracado por la bubona pesto?	Is there treatment for the bubonic plague	86.788771	55.780029	0.984802
31	train	does buffy's mom know she's a slayer	Does Buffy's mom know she's a slayer?	Ĉu la panjo de Buffy scias, ke ŝi estas mortiginto?	Does Buffy's mom know she's a killer	65.497401	41.113362	0.942075
32	train	was the leaning tower of pisa built leaning	Was the leaning tower of Pisa built leaning?	Ĉu la kliniĝanta turo de Pizo estis konstruita kliniĝante?	Was the leaning tower of Pisa built leaning	86.271025	41.113362	0.96217
33	train	is the movie fool's gold a true story	Is the movie fool's gold a true story?	Ĉu la oro de la filma stultulo estas vera rakonto?	Is the gold of the movie fool a real story	52.230352	10.55267	0.960816
34	train	has any nfl team played the superbowl at home	Has any Nfl team played the Superbowl at home?	Ĉu iu Nfl-teamo ludis la Superbowl hejme?	Did any Nfl team play the Superbowl at home	61.378745	11.990148	0.928468
35	train	does each australian state have its own constitution	Does each Australian state have its own constitution?	Ĉu ĉiu aŭstralia ŝtato havas sian propran konstitucion?	Does every Australian state have its own constitution	82.19248	51.697315	0.973979
36	train	can you have a right and left bundle branch block	Can you have a right and left bundle branch block?	Ĉu vi povas havi dekstran kaj maldekstran faskon branĉoblokon?	Can you have a right and left bundle branch block	97.327783	88.011174	0.980029
37	train	do you always have to say check in chess	Do you always have to say check in chess?	Ĉu vi ĉiam devas diri ĉekon en ŝako?	Do you always have to say check in chess	96.598742	86.334002	0.985021
38	train	is an australian shepherd the same as an australian cattle dog	Is an Australian shepherd the same as an Australian cattle dog?	Ĉu aŭstralia paŝtisto estas la sama kiel aŭstralia bovhundo?	Is an Australian shepherd the same as an Australian cowdog	71.26578	37.200908	0.952139
39	train	is tomato puree and tomato sauce the same thing	Is tomato puree and tomato sauce the same thing?	Ĉu tomato estas purea kaj tomatosaŭco la sama afero?	Is tomato pure and tomato sauce the same thing	90.237163	61.047358	0.932304
40	train	is the blues brothers based on a true story	Is the blues brothers based on a true story?	Ĉu la blusaj fratoj baziĝas sur vera rakonto?	Are the blues brothers based on a real story	73.994517	61.047358	0.974165
41	train	is newcastle upon tyne the same as newcastle	Is Newcastle upon Tyne the same as Newcastle?	Ĉu Novkastelo estas sur Tyne la sama kiel Novkastelo?	Is Newcastle on Tyne the same as Newcastle	61.347349	20.556681	0.932131
42	train	is post office and royal mail the same	Is post office and royal mail the same?	Ĉu poŝtejo kaj reĝa poŝto estas la samaj?	Is the post office and royal post the same	68.801472	35.494811	0.934614
43	train	has any supreme court nominee not been confirmed	Has any Supreme Court nominee not been confirmed?	Ĉu iu kasacia kortumo ne estis konfirmita?	Wasn't any Supreme Court confirmed	36.361068	6.971729	0.886113
44	train	is thanksgiving always the last thursday of the month	Is thanksgiving always the last thursday of the month?	Ĉu danko ĉiam estas la lasta tago de la monato?	Is thanks always the last day of the month	62.85056	29.847459	0.942364
45	train	is lord of the rings after the hobbit	Is Lord of the rings after the hobbit?	Ĉu la Sinjoro de la ringoj estas post la hobito?	Is the Lord of the Rings after the Hobbit	62.483516	13.485112	0.946121
46	train	is the fallen movie going to have a sequel	Is the fallen movie going to have a sequel?	Ĉu la falinta filmo havos daŭrigon?	Will the fallen film continue	27.87172	9.599621	0.880743
47	train	does anyone on instagram have 1 billion followers	Does anyone on Instagram have 1 billion followers?	Ĉu iu en Instagram havas 1 miliardo da sekvantoj?	Does anyone on Instagram have 1 billion followers	88.398686	41.113362	0.983953
48	train	in the phantom menace is padme the queen	In the phantom menace is padme the queen?	En la fantoma minaco la reĝino estas kusenema?	In the ghostly threat the queen is cushioned	28.836794	13.134549	0.917668
49	train	is lord of the rings considered an epic	Is Lord of the rings considered an epic?	Ĉu la Sinjoro de la ringoj estas konsiderata kiel epopeo?	Is the Lord of the Rings considered an epic	76.523485	22.316181	0.953945
50	train	does the euro sign go before the number	Does the Euro sign go before the number?	Ĉu la eŭrosigno iras antaŭ la nombro?	Is the euro sign ahead of the number	57.526908	25.848658	0.921735
51	train	can stainless steel be used on induction cooktop	Can stainless steel be used on induction cooktop?	Ĉu neoksidebla ŝtalo povas esti uzata sur indukta kuirplato?	Can stainless steel be used on an inductive cooking plate	72.240865	39.281465	0.953091
52	train	is job termination the same as being fired	Is job termination the same as being fired?	Ĉu la laboro estas la sama kiel la maldungo?	Is the job the same as the dismissal	31.578584	22.089591	0.904411
53	train	does age have any influence on attentional ability or inattentional blindness	Does age have any influence on attentional ability or inattentional blindness?	Ĉu aĝo havas ajnan influon sur atentokapablo aŭ neatenta blindeco?	Does age have any influence on attention ability or inattentive blindness	83.580255	41.722614	0.984187
54	train	is sanskrit the first language of the world	Is sanskrit the first language of the world?	Ĉu sanskrito estas la unua lingvo de la mondo?	Is Sanskrit the first language in the world	78.218348	25.848658	0.922442
55	train	is a jack russell considered a small breed	Is a Jack Russell considered a small breed?	Ĉu Jack Russell estas konsiderata malgranda raso?	Is Jack Russell considered a small race	65.511312	21.191828	0.929781
56	train	does air force one travel with fighter escort	Does air force one travel with fighter escort?	Ĉu aerarmeo unu vojaĝado kun batalanto eskortas?	Does Air Force one travel with a fighter escort	74.1517	22.316181	0.977498
57	train	is it legal to own an ar15 in california	Is it legal to own an Ar15 in California?	Ĉu ĝi estas laŭleĝa posedi Ar15 en Kalifornio?	Is it legal to own Ar15 in California	66.203174	32.260135	0.968603
58	train	is the national anthem and star spangled banner the same	Is the national anthem and star spangled banner the same?	Ĉu la nacia himno kaj stelo estas samangulaj?	Are the national anthem and star co-angular	54.246928	40.049701	0.893467
59	train	is there an international airport in naples italy	Is there an international airport in Naples Italy?	Ĉu estas internacia flughaveno en Napolo Italio?	Is there an international airport in Naples Italy	79.784216	51.697315	0.9646
60	train	can you buy cadburys creme eggs all year round	Can you buy Cadburys creme eggs all year round?	Ĉu vi povas aĉeti Cadburys-kremo-ovojn tutjare?	Can you buy Cadburys cream eggs all year round	75.01329	35.494811	0.964012
61	train	do homologous chromosomes carry information for the same traits	Do homologous chromosomes carry information for the same traits?	Ĉu homologaj kromosomoj portas informojn por la samaj trajtoj?	Do homologous chromosomes carry information for the same features	87.200126	72.597953	0.986413
62	train	has michigan ever won a national championship in football	Has Michigan ever won a national championship in football?	Ĉu Miĉigano iam gajnis nacian ĉampionecon en futbalo?	Did Michigan ever win a national football championship	71.481886	12.256201	0.952841
63	train	you can tell a lot about a person by how they treat their waiter	You can tell a lot about a person by how they treat their waiter?	Vi povas rakonti multe pri persono per kiel ili traktas sian kelneron?	You can tell a lot about a person with how they treat their waiter	87.797608	69.975223	0.983708
64	train	are there any crocodiles native to north america	Are there any crocodiles native to North America?	Ĉu estas krokodiloj indiĝenaj en Nordameriko?	Are there crocodiles native to North America	65.753339	22.772101	0.968552
65	train	does lex luthor know who superman is in smallville	Does Lex Luthor know who Superman is in Smallville?	Ĉu Lex Luthor scias, kiu estas Superman en Smallville?	Does Lex Luthor know who Superman is in Smallville	65.199317	13.485112	0.905179
66	train	do you have to have a college degree to take the bar exam	Do you have to have a college degree to take the bar exam?	Ĉu vi devas havi universitatan diplomon por fari la ekzamenon?	Do you have to have a college degree to take the exam	86.151915	76.043218	0.924893
67	train	will there be a season 2 of marvel's iron fist	Will there be a season 2 of marvel's iron fist?	Ĉu estos sezono 2 de la fera pugno de mirindaĵo?	Will it be season 2 of the iron fist of wonder	43.307614	18.360281	0.958964
68	train	is 844 a toll free number in canada	Is 844 a toll free number in Canada?	Ĉu 844 estas paga senpaga nombro en Kanado?	Is 844 a free payment number in Canada	46.343003	16.515822	0.94701
69	train	does any other country have daylight savings time	Does any other country have daylight savings time?	Ĉu iu alia lando havas someran ŝpartempon?	Does any other country have a summer savings time	71.401618	35.494811	0.890281
70	train	has anyone ever pitched back to back no hitters	Has anyone ever pitched back to back no hitters?	Ĉu iu iam remetis al la dorso, sensukcesuloj?	Has anyone ever put back, the poor	38.736481	10.786826	0.81263
71	train	is there a black bike week in myrtle beach	Is there a black bike week in Myrtle Beach?	Ĉu estas nigra biciklosemajno en Myrtle Beach?	Is there a black bike week in Myrtle Beach	74.511953	58.739491	0.962908
72	train	are static shock and black lightning the same person	Are static shock and black lightning the same person?	Ĉu statika ŝoko kaj nigra fulmo estas la sama persono?	Is static shock and black lightning the same person	93.208727	86.334002	0.965744
73	train	is there such a thing as unbreakable glass	Is there such a thing as unbreakable glass?	Ĉu estas io tiel nerompebla kiel vitro?	Is there anything as unbreakable as glass	66.457394	13.540372	0.929429
74	train	can liquid latex be used as an adhesive	Can liquid latex be used as an adhesive?	Ĉu likva latekso povas esti uzata kiel gluaĵo?	Can liquid latex be used as a glue	68.845976	51.697315	0.972614
75	train	is it illegal to carry a pistol in your car in texas	Is it illegal to carry a pistol in your car in Texas?	Ĉu estas kontraŭleĝe porti pistolon en via aŭto en Teksaso?	Is it illegal to carry a pistol in your car in Texas	88.554127	80.705573	0.977943
76	train	is it legal to carry a sgian dubh	Is it legal to carry a sgian dubh?	Ĉu estas laŭleĝe porti sgianan duŝon?	Is it legal to carry a sgyian shower	68.621252	51.697315	0.900274
77	train	several cranial nerves innervate structures of the tongue	Several cranial nerves innervate structures of the tongue?	Pluraj kraniaj nervoj enspiras strukturojn de la lango?	Several cranial nerves breathe structures of the tongue in	78.308818	35.494811	0.949514
78	train	is porto rico a part of the united states	Is Porto Rico a part of The United States?	Ĉu Porto-Riko estas parto de Usono?	Is Puerto Rico part of the United States	44.077043	18.141207	0.929116
79	train	is there sales tax in the state of washington	Is there sales tax in the state of Washington?	Ĉu estas vendimposto en la ŝtato Vaŝingtonio?	Is there a sales tax in the state of Washington	78.71377	53.728497	0.966018
80	train	has anyone scored 6 goals in one game	Has anyone scored 6 goals in one game?	Ĉu iu trafis 6 golojn en unu ludo?	Did anyone hit 6 goals in one game	60.043467	54.108227	0.973972
81	train	can puppies see right when their eyes open	Can puppies see right when their eyes open?	Ĉu hundidoj povas vidi ĝuste kiam iliaj okuloj malfermiĝas?	Can puppies see just when their eyes open	77.054998	41.113362	0.946794
82	train	is the sears tower the same as the hancock building	Is the Sears tower the same as The Hancock Building?	Ĉu la Sears estas la sama kiel la Hancock Building?	Is the Sears the same as the Hancock Building	55.474376	28.24099	0.927617
83	train	is tokyo ghoul re related to tokyo ghoul	Is Tokyo ghoul re related to Tokyo ghoul?	Ĉu Tokio estas ghoul re rilata al Tokio ghoul?	Is Tokyo a ghoul re-related to Tokyo ghoul	61.535083	7.267884	0.971436
84	train	do texas state troopers have to wear hats	Do Texas state troopers have to wear hats?	Ĉu la Teksasaj ŝtatsoldatoj devas porti ĉapelojn?	Should the Texas state soldiers wear hats	43.289487	12.600736	0.951382
85	train	is vaping illegal if you are under 18	Is vaping illegal if you are under 18?	Ĉu vapo estas kontraŭleĝa se vi estas sub 18?	Is vaping illegal if you are under 18	96.349517	84.089642	0.981933
86	train	is wheat flour and white flour the same thing	Is wheat flour and white flour the same thing?	Ĉu tritika faruno kaj blanka faruno estas la sama aĵo?	Is wheat flour and white flour the same thing	97.094316	86.334002	0.96888
87	train	do they find the body in stand by me	Do they find the body in stand by me?	Ĉu ili trovas la korpon en mia pozicio?	Do they find the body in my position	63.089822	45.622721	0.907114
88	train	did the english win the hundred years war	Did the English win the hundred years war?	Ĉu la angloj venkis en la centjara milito?	Did the English win the Hundred Years' War	54.664807	12.223076	0.944413
89	train	is ferguson jenkins in the hall of fame	Is Ferguson Jenkins in the hall of fame?	Ĉu Ferguson Jenkins estas en la famhalo?	Is Ferguson Jenkins in the hall of fame	78.075546	51.697315	0.953387
90	train	are family dollar and dollar general the same company	Are family dollar and dollar general the same company?	Ĉu familia dolaro kaj dolara generalo estas la sama kompanio?	Is family dollar and dollar general the same company	93.369808	86.334002	0.977494
91	train	is station 19 a grey's anatomy spin off	Is station 19 a grey's anatomy spin off?	Ĉu stacio 19 estas forturnata la anatomio de griza grizo?	Is station 19 turned away the anatomy of grey grey	45.422898	9.287529	0.967946
92	train	are tomatoes a member of the nightshade family	Are tomatoes a member of the nightshade family?	Ĉu tomatoj estas membro de la familio de noktombruloj?	Are tomatoes a member of the family of nightshadows	80.891803	46.713798	0.961305
93	train	is dollar tree the same as dollar general	Is dollar tree the same as dollar general?	Ĉu dolararbo estas la sama kiel dolargeneralo?	Is a dollar tree the same as a dollar general	84.791847	45.1801	0.970562
94	train	does the cat in the hat have a name	Does the cat in the hat have a name?	Ĉu la kato en la ĉapelo havas nomon?	Does the cat have a name in the hat	80.737797	33.913261	0.96466
95	train	the movie rudy based on a true story	The movie Rudy based on a true story?	La filmo Rudy bazita sur vera rakonto?	The film Rudy based on a real story	45.224989	22.089591	0.92353
96	train	is the movie the wall a true story	Is the movie the wall a true story?	Ĉu la filmo estas la muro vera rakonto?	Is the film the wall a real story	41.046935	23.356899	0.972711
97	train	is it legal to carry a gun in nyc	Is it legal to carry a gun in Nyc?	Ĉu estas laŭleĝe porti pafilon en Nyc?	Is it legal to carry a gun in Nyc	84.146543	72.597953	0.936862
98	train	the former soviet union broke into separate states	The former Soviet Union broke into separate states?	Ĉu la eksa Sovetunio disiĝis en apartajn ŝtatojn?	Did the former Soviet Union break up into separate states	68.041678	19.640733	0.92524
99	train	does hot and sour soup have a lot of sodium	Does hot and sour soup have a lot of sodium?	Ĉu varma kaj acida supo havas multe da natrio?	Does hot and sour soup have a lot of sodium	96.816017	88.011174	0.976853

End of preview. Expand in Data Studio

esperanto-boolq-questions

BoolQ questions (train + validation, 12,697 rows) translated from English to Esperanto by jensjepsen/eo-mt-v13-large-bidir, with round-trip quality metadata for filtering.

Row schema

field	description
`orig_idx`	original BoolQ row index (train first, then validation)
`split`	source split (`train` / `validation`)
`en_orig`	raw BoolQ question (lowercase, no `?`, as in google/boolq)
`en_preproc`	preprocessed input fed to MT: spaCy `en_core_web_lg` recase (first-word cap + PROPN/entity title-case) + `?` appended
`en_eo`	Esperanto translation (`preproc` → EO, greedy decode)
`en_eo_en`	EO → EN back-translation (trailing `?` stripped)
`chrf`	sacrebleu sentence chrF, `en_eo_en` vs `en_orig`
`bleu`	sacrebleu sentence BLEU, `en_eo_en` vs `en_orig`
`cos_sim`	LaBSE (`sentence-transformers/LaBSE`) cosine similarity between `en_orig` and `en_eo_en`

Quality distribution

metric	mean	median
chrF	66.4	66.9
BLEU	37.1	32.0
cos_sim	0.942	0.951

Round-trip fail-rate (LaBSE cos_sim thresholds):

threshold	count	rate
<0.90	1,400	11.03%
<0.85	377	2.97%
<0.80	122	0.96%
<0.75	36	0.28%
<0.70	11	0.09%

Recommended filter for downstream use: cos_sim >= 0.85 keeps ~~97% of rows and drops the catastrophic tier where semantic meaning was lost. cos_sim >= 0.90 (~~89% kept) is a stricter alternative for high-quality-only use.

Why round-trip

The primary use is quality-scored EO translations of BoolQ questions. The back-translation isn't there to "double-check" (MT round-trips often introduce spurious drift), it's there to give a per-row LaBSE similarity score that flags catastrophically-bad forward translations without needing EO annotators. cos_sim correlates strongly with "the EO translation is faithful" — 3% of rows fall below 0.85 and those are mostly pop-culture titles / brand names / idioms that MT couldn't preserve (see en_orig at low cos_sim).

Preprocessing rationale

BoolQ questions are stored as lowercase fragments without terminal punctuation. Feeding them raw to MT causes two problems:

Named entities miss capitalization, so elena, hyundai, instagram get translated as common nouns.
v12 (eo-mt-v12-bidir) had a specific failure mode where capitalized-fragment-no-terminal-punct inputs collapsed to memorized KDE/GNOME UI labels (@ info: whatsthis -> & Resize). v13 fixed this via OPUS-100 cleanup.

The spaCy recase + ? suffix restores proper casing on entities (Instagram, Hyundai, John Wick) and matches the training-data distribution.

Reproduce

from datasets import load_dataset
ds = load_dataset("jensjepsen/esperanto-boolq-questions", split="train")

# Keep only high-quality translations
clean = ds.filter(lambda r: r["cos_sim"] >= 0.85)

Original BoolQ: google/boolq. Translation script: roundtrip_boolq_scored.py

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