check that protein binding annotations have two assayed_using extensions - CHECK FAILURE:  expected 0 but got 9
feature_cvterm_id	?column?	uniquename	session
  408943	a6d8f45c20c2227d-genotype-9 <-> abolished protein-protein interaction [assayed_using] PomBase:SPBP19A11.03c [assayed_protein] PomBase:SPAC3G6.02	PMID:25306921	a6d8f45c20c2227d
  443403	5b5e46476125df7d-genotype-3 <-> normal protein-protein interaction [assayed_using] PomBase:SPAC11E3.08c	PMID:30348841	5a8021665769078b
  443404	5b5e46476125df7d-genotype-3 <-> normal protein-protein interaction [assayed_using] PomBase:SPAC14C4.02c	PMID:30348841	5a8021665769078b
  443412	5a8021665769078b-genotype-6 <-> decreased protein-protein interaction [assayed_using] PomBase:SPAC11E3.08c [assayed_protein] PomBase:SPBC582.05c	PMID:30348841	5a8021665769078b
  453989	260925d9ac1a773d-genotype-3 <-> decreased protein-protein interaction [assayed_protein] PomBase:SPBC36B7.08c	PMID:34810257	260925d9ac1a773d
  453990	260925d9ac1a773d-genotype-3 <-> increased protein-protein interaction [assayed_protein] PomBase:SPBC11C11.03	PMID:34810257	260925d9ac1a773d
  453991	260925d9ac1a773d-genotype-4 <-> increased protein-protein interaction [assayed_protein] PomBase:SPBC36B7.08c	PMID:34810257	260925d9ac1a773d
  467754	0afd82c6e0085a3f-genotype-2 <-> abolished protein-protein interaction [assayed_using] PomBase:SPBC146.07 [assayed_protein] PomBase:SPBC21B10.05c	PMID:24586893	4e7e30e382d662d9
  474178	273b40e887289b97-genotype-9 <-> decreased protein-protein interaction [assayed_using] PomBase:SPAC664.01c [assayed_protein] PomBase:SPCC622.16c [has_severity] low	PMID:31206516	35e6ffe290c8f5c3