input: If you are using the iPhone or the Android full version you can use the NAVIGON app on several devices
fixed: If you are using the iPhone or the Android full version you can use the NAVIGON app on several devices.

input: Let us go back now to the simple case of a univariate function fx
fixed: Let us go back now to the simple case of a univariate function f(x).

input: I am offered a chance to give a presentation about Greenland tourism at a seminar on 14 December 2012 during Premier Kuupik Kleists visit to Seoul
fixed: I am offered a chance to give a presentation about Greenland tourism at a seminar on 14 December 2012 during Premier Kuupik Kleist's visit to Seoul.

input: Zeno of Sidon was born in the city of Sidon on the Mediterranean coast of what today is Lebanon Sidon was one of the oldest Phoenician cities and from its founding in the 3rd millennium BC was ruled by many different peoples Assyria Babylonia Persia Alexander the Great the Seleucids of Syria the Ptolemys of Egypt and the Romans
fixed:
Zeno of Sidon was born in the city of Sidon on the Mediterranean coast of what today is Lebanon. Sidon was one of the oldest Phoenician cities and, from its founding in the 3rd millennium BC, was ruled by many different peoples: Assyria, Babylonia, Persia, Alexander the Great , the Seleucids of Syria, the Ptolemys of Egypt, and the Romans.