Explaination:
The parallelogram is a mix of a and ɑ, creating ä.
The dotted infinity pulls it closer to ə, making ɜ.
The dot above rounds it, creating ɞ.
The macron nasalizes it, so it becomes ɞ̃.
The s thing is the r letter, rhoticising it into ɞ̃˞.
Finally, the line at the end lengthens it, creating ɞ̃˞ː.
