Problem: Add spaces: Waterhyacinthscanalsobeusedtoproducesolidfuel,thoughwithalowcombustionvalueof8.3gigajoules(GJ)percubicmeter(m3)lessthanwoodthisapproachremainsinefficient.

Spaces added: 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.
This text is missing some spaces, please add them: 6-7mmNaturalWhitePearlandClearCrystalLongNecklace
6-7mm Natural White Pearl and Clear Crystal Long Necklace
input question: Fix spacing: Howdoesoneavoidthisunquenchablefire?

output answer: How does one avoid this unquenchable fire?
Problem: MountingpossiblewithhollowwallmountingaccessoryZHB612-Thehousingunitscanbemountedoneabovetheotherandsidebysideusingtheprovidedaccessories.
What's a sentence that uses these characters?
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Mounting possible with hollow wall mounting accessory ZHB 612- The housing units can be mounted one above the other and side by side using the provided accessories.
Add spaces: Secondly,itisasymbolofwhatthemasculinerepresentstoyou,foryourfatherwasthefirstmaninyourlife.

Answer: Secondly, it is a symbol of what the masculine represents to you, for your father was the first man in your life.
This text is missing some spaces, please add them: HagorIndustrieswasestablishedin1956.HagorisamajorsupplierofmilitaryequipmenttoIsraelDefenseForces,IsraelPolice,SpecialAnti-TerrorUnitsinIsraelandworldwide.
Hagor Industries was established in 1956. Hagor is a major supplier of military equipment to Israel Defense Forces , Israel Police , Special Anti - Terror Units in Israel and worldwide.