various; a variety of; all kinds of; many; diverse

various; a variety of; all kinds of; many; diverse

superior and subordinate

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

experimental results

an operation; surgery (procedure involving major incisions)

(written) report, paper

presenter, reporter