spiro[3.4]octane	InChI=1S/C8H14/c1-2-5-8(4-1)6-3-7-8/h1-7H2
spiro[3.3]heptane	InChI=1S/C7H12/c1-3-7(4-1)5-2-6-7/h1-6H2
spiro[4.5]decane	InChI=1S/C10H18/c1-2-6-10(7-3-1)8-4-5-9-10/h1-9H2
spiro[4.5]deca-1,6-diene	InChI=1S/C10H14/c1-2-6-10(7-3-1)8-4-5-9-10/h2,4,6,8H,1,3,5,7,9H2
trispiro[2.0.2^(4).1.2^(8).1^(3)]undecane	InChI=1S/C11H16/c1-2-9(1)7-10(3-4-10)11(8-9)5-6-11/h1-8H2
trispiro[2.0.24.1.28.13]undecane	InChI=1S/C11H16/c1-2-9(1)7-10(3-4-10)11(8-9)5-6-11/h1-8H2
spiro[cyclopentane-1,1'-indene]	InChI=1S/C13H14/c1-2-6-12-11(5-1)7-10-13(12)8-3-4-9-13/h1-2,5-7,10H,3-4,8-9H2
1,1'-spirobiindene	InChI=1S/C17H12/c1-3-7-15-13(5-1)9-11-17(15)12-10-14-6-2-4-8-16(14)17/h1-12H
dispiro[5.1.7.2]heptadecane	InChI=1S/C17H30/c1-2-5-9-16(10-6-3-1)13-14-17(15-16)11-7-4-8-12-17/h1-15H2
dispiro[fluorene-9,1'-cyclohexane-4',1''-indene]	InChI=1/C26H22/c1-4-10-22-19(7-1)13-14-25(22)15-17-26(18-16-25)23-11-5-2-8-20(23)21-9-3-6-12-24(21)26/h1-14H,15-18H2
cyclopentanespirocyclobutane	InChI=1S/C8H14/c1-2-5-8(4-1)6-3-7-8/h1-7H2
cyclohexanespirocyclopentane	InChI=1S/C10H18/c1-2-6-10(7-3-1)8-4-5-9-10/h1-9H2
2H-indene-2-spiro-1'-cyclopentane	InChI=1S/C13H14/c1-2-6-12-10-13(7-3-4-8-13)9-11(12)5-1/h1-2,5-6,9-10H,3-4,7-8H2
2-cyclohexenespiro-(2'-cyclopentene)	InChI=1S/C10H14/c1-2-6-10(7-3-1)8-4-5-9-10/h2,4,6,8H,1,3,5,7,9H2
spirobicyclohexane	InChI=1S/C11H20/c1-3-7-11(8-4-1)9-5-2-6-10-11/h1-10H2
2-cyclohexenespiro-(3'-cyclohexene)	InChI=1S/C11H16/c1-3-7-11(8-4-1)9-5-2-6-10-11/h1,3,5,9H,2,4,6-8,10H2
spiro[4.5]deca-1,6-dien-2-yl	InChI=1S/C10H13/c1-2-6-10(7-3-1)8-4-5-9-10/h2,6,9H,1,3-4,7-8H2
2-cyclohexenespiro-2'-cyclopenten-3'-yl	InChI=1S/C10H13/c1-2-6-10(7-3-1)8-4-5-9-10/h2,6,9H,1,3-4,7-8H2
spiro[cyclopentane-1,1'-inden]-2'-yl	InChI=1S/C13H13/c1-2-6-12-11(5-1)7-10-13(12)8-3-4-9-13/h1-2,5-7H,3-4,8-9H2
1-oxaspiro[4,5]decane	InChI=1S/C9H16O/c1-2-5-9(6-3-1)7-4-8-10-9/h1-8H2
6,8-diazoniadispiro[5.1.6.2]hexadecane dichloride	InChI=1S/C14H28N2.2ClH/c1-2-5-9-15(8-4-1)12-13-16(14-15)10-6-3-7-11-16;;/h1-14H2;2*1H/q+2;;/p-2
3,3'-spirobi[3H-indole]	InChI=1S/C15H10N2/c1-3-7-13-11(5-1)15(9-16-13)10-17-14-8-4-2-6-12(14)15/h1-10H
spiro[piperidine-4,9'-xanthene]	InChI=1S/C17H17NO/c1-3-7-15-13(5-1)17(9-11-18-12-10-17)14-6-2-4-8-16(14)19-15/h1-8,18H,9-12H2
cyclohexanespiro-2'-(tetrahydrofuran)	InChI=1S/C9H16O/c1-2-5-9(6-3-1)7-4-8-10-9/h1-8H2
tetrahydropyran-2-spirocyclohexane	InChI=1S/C10H18O/c1-2-6-10(7-3-1)8-4-5-9-11-10/h1-9H2
3,3'-spirobi(3H-indole)	InChI=1S/C15H10N2/c1-3-7-13-11(5-1)15(9-16-13)10-17-14-8-4-2-6-12(14)15/h1-10H
1,2,3,4-tetrahydroquinoline-4-spiro-4'-piperidine	InChI=1S/C13H18N2/c1-2-4-12-11(3-1)13(7-10-15-12)5-8-14-9-6-13/h1-4,14-15H,5-10H2
hexahydroazepinium-1-spiro-1'-imidazolidine-3'-spiro-1''-piperidinium dibromide	InChI=1S/C14H28N2.2BrH/c1-2-5-9-15(8-4-1)12-13-16(14-15)10-6-3-7-11-16;;/h1-14H2;2*1H/q+2;;/p-2
1-Oxaspiro[4.5]dec-2-yl	InChI=1S/C9H15O/c1-2-5-9(6-3-1)7-4-8-10-9/h8H,1-7H2
Cyclohexanespiro-2'-(tetrahydrofuran)-5'-yl	InChI=1S/C9H15O/c1-2-5-9(6-3-1)7-4-8-10-9/h8H,1-7H2
Spiro[benzofuran-2(3H),1'-cyclohexan]-4'-yl	InChI=1S/C13H15O/c1-4-8-13(9-5-1)10-11-6-2-3-7-12(11)14-13/h1-3,6-7H,4-5,8-10H2
Spiro[naphthalene-2(3H),2'-thian]-4'-yl	InChI=1S/C14H15S/c1-2-6-13-11-14(8-3-4-10-15-14)9-7-12(13)5-1/h1-3,5-7,11H,4,8-10H2
5lambda^5-arsaspiro[4.4]nonan-5-ylium	InChI=1S/C8H16As/c1-2-6-9(5-1)7-3-4-8-9/h1-8H2/q+1
5-arsoniaspiro[4.4]nonane	InChI=1S/C8H16As/c1-2-6-9(5-1)7-3-4-8-9/h1-8H2/q+1
5lambda^5-phosphaspiro[4.4]nonan-5-uide	InChI=1S/C8H18P/c1-2-6-9(5-1)7-3-4-8-9/h1-9H2/q-1
5lambda^5-phosphanuidaspiro[4.4]nonane	InChI=1S/C8H18P/c1-2-6-9(5-1)7-3-4-8-9/h1-9H2/q-1
5lambda^5,5'-spirobi[benzo[b]phosphindol]-5-ylium	InChI=1S/C24H16P/c1-5-13-21-17(9-1)18-10-2-6-14-22(18)25(21)23-15-7-3-11-19(23)20-12-4-8-16-24(20)25/h1-16H/q+1
9-phosphonia-9,9'-spirobi[fluorene]	InChI=1S/C24H16P/c1-5-13-21-17(9-1)18-10-2-6-14-22(18)25(21)23-15-7-3-11-19(23)20-12-4-8-16-24(20)25/h1-16H/q+1
5,5'-spirobi[benzo[b]phosphindolium]	InChI=1S/C24H16P/c1-5-13-21-17(9-1)18-10-2-6-14-22(18)25(21)23-15-7-3-11-19(23)20-12-4-8-16-24(20)25/h1-16H/q+1
5,5'-spirobi[5H-dibenzophospholinium]	InChI=1S/C24H16P/c1-5-13-21-17(9-1)18-10-2-6-14-22(18)25(21)23-15-7-3-11-19(23)20-12-4-8-16-24(20)25/h1-16H/q+1
5lambda7,5',5''-spiroter[benzo[b]phosphindol]-5-ide	InChI=1S/C36H24P/c1-7-19-31-25(13-1)26-14-2-8-20-32(26)37(31,33-21-9-3-15-27(33)28-16-4-10-22-34(28)37)35-23-11-5-17-29(35)30-18-6-12-24-36(30)37/h1-24H/q-1
1H-2lambda5-spiro[isoquinoline-2,2'-pyrido[1,2-a]pyrazin]-2-ylium	InChI=1/C17H15N2/c1-2-6-16-13-19(11-8-15(16)5-1)12-10-18-9-4-3-7-17(18)14-19/h1-12,14H,13H2/q+1
spiro[isoquinoline-2(1H),2'-[2H]pyrido[1,2-a]pyrazinium]	InChI=1/C17H15N2/c1-2-6-16-13-19(11-8-15(16)5-1)12-10-18-9-4-3-7-17(18)14-19/h1-12,14H,13H2/q+1
2'H-3lambda5-spiro[3-azabicyclo[3.2.2]nonane-3,3'-[1,3]oxazol]-3-ylium	InChI=1S/C11H18NO/c1-2-11-4-3-10(1)7-12(8-11)5-6-13-9-12/h5-6,10-11H,1-4,7-9H2/q+1
spiro[3-azabicyclo[3.2.2]nonane-3,3'(2H)-oxazolium]	InChI=1S/C11H18NO/c1-2-11-4-3-10(1)7-12(8-11)5-6-13-9-12/h5-6,10-11H,1-4,7-9H2/q+1
spiro[fluorene-9,2'-[3]thiabicyclo[2.2.2]oct[5]ene]	InChI=1S/C19H16S/c1-3-7-17-15(5-1)16-6-2-4-8-18(16)19(17)13-9-11-14(20-19)12-10-13/h1-9,11,13-14H,10,12H2
#Incorrect indicated hydrogen
5'-bromo-1',3'-dihydro-2H,5H-spiro[imidazolidine-4,2'-indene]-2,5-dione	InChI=1/C11H9BrN2O2/c12-8-2-1-6-4-11(5-7(6)3-8)9(15)13-10(16)14-11/h1-3H,4-5H2,(H2,13,14,15,16)
