they might be but not at not at the human factors level
( they ( might ( be ( ( but ( ( not ( at not ) ) ( at ( the ( human factors ) ) ) ) ) level ) ) ) )
(ROOT (S (NP (PRP they)) (VP (MD might) (VP (VB be) (ADJP (PRN (CC but) (ADVP (RB not) (IN at) (RB not)) (PP (IN at) (NP (DT the) (JJ human) (NNS factors)))) (JJ level))))))
Are they hiring?
( ( ( Are they ) hiring ) ? )
(ROOT (SQ (VBP Are) (NP (PRP they)) (VP (VBG hiring)) (. ?)))