| (38%) | work research people past hist info critical present level south ... |
| (25%) | talk don tweets working school field courses pm ny join ... |
| (13%) | teaching early hilton learning ahatuning guide assessment teach learned theory ... |
| (13%) | tweeting live process focus dl records mapping analysis years lincolnmullen ... |
| (13%) | africanadh data archives black notes big press google link texts ... |