Twitter teaching Trump to how to write 'Their'

After declaring it a victory in Syria, Trump called back his full troop to the US and 50% of the army from Afghanistan. Talking about the issue he wrote on Twitter “Getting out of Syria was no surprise. Russia, Iran, Syria & others are the local enemies of ISIS. We were doing there work. Time to come home & rebuild.” In his post, he wrote 'there' instead of 'their' and tweeples took a chance to teach him English.