Similar meetings between Iraqi officials and Bin Ladin or his aides may have occurred in 1999 during a period of some reported strains with the Taliban.
( ( ( ( ( Similar meetings ) ( between ( Iraqi officials ) ) ) and ) ( ( ( Bin Ladin ) or ) ( his aides ) ) ) ( ( may ( have ( ( occurred ( in 1999 ) ) ( during ( ( a period ) ( of ( ( some ( reported strains ) ) ( with ( the Taliban ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (JJ Similar) (NNS meetings)) (PP (IN between) (NP (JJ Iraqi) (NNS officials)))) (CC and) (NP (NP (NNP Bin) (NNP Ladin)) (CC or) (NP (PRP$ his) (NNS aides)))) (VP (MD may) (VP (VB have) (VP (VBN occurred) (PP (IN in) (NP (CD 1999))) (PP (IN during) (NP (NP (DT a) (NN period)) (PP (IN of) (NP (NP (DT some) (VBN reported) (NNS strains)) (PP (IN with) (NP (DT the) (NNP Taliban)))))))))) (. .)))
Bin Laden and the Taliban had a strain in their alliance in 1999. 
( ( ( ( Bin Laden ) and ) ( the Taliban ) ) ( ( ( had ( ( a strain ) ( in ( their alliance ) ) ) ) ( in 1999 ) ) . ) )
(ROOT (S (NP (NP (NNP Bin) (NNP Laden)) (CC and) (NP (DT the) (NNP Taliban))) (VP (VBD had) (NP (NP (DT a) (NN strain)) (PP (IN in) (NP (PRP$ their) (NN alliance)))) (PP (IN in) (NP (CD 1999)))) (. .)))