input question: Fix spacing: Waterhyacinthscanalsobeusedtoproducesolidfuel,thoughwithalowcombustionvalueof8.3gigajoules(GJ)percubicmeter(m3)lessthanwoodthisapproachremainsinefficient.

output answer: Water hyacinths can also be used to produce solid fuel, though with a low combustion value of 8.3 gigajoules (GJ) per cubic meter (m3) less than wood this approach remains inefficient.

input question: Fix spacing: ...forapaperoffundamentalandlastingimportance,Onmanifoldshomeomorphictothe7-sphere,AnnalsofMathematics64(1956),399-405.

output answer: ...for a paper of fundamental and lasting importance, On manifolds homeomorphic to the 7-sphere, Annals of Mathematics 64 (1956), 399-405.

input question: Fix spacing: TransferfromLondonSW4ClaphamtoLondonSaintPancras(TRQQS)Trainstation

output answer: Transfer from London SW 4 Clapham to London Saint Pancras (TRQQS) Train station

input question: Fix spacing: In6yearsaroundtheworld:Asia#2

output answer:
In 6 years around the world: Asia #2