Given a passage classify if the passage has a definite objective/aim/goal or not. Output '1' if the passage has a defininte objective/aim/goal and output '0' if the passage does not have a definite objective/aim/goal.

Example input: Chronic rhinosinusitis (CRS) is a heterogeneous disease with an uncertain pathogenesis. Group 2 innate lymphoid cells (ILC2s) represent a recently discovered cell population which has been implicated in driving Th2 inflammation in CRS; however, their relationship with clinical disease characteristics has yet to be investigated. The aim of this study was to identify ILC2s in sinus mucosa in patients with CRS and controls and compare ILC2s across characteristics of disease. A cross-sectional study of patients with CRS undergoing endoscopic sinus surgery was conducted. Sinus mucosal biopsies were obtained during surgery and control tissue from patients undergoing pituitary tumour resection through transphenoidal approach. ILC2s were identified as CD45(+) Lin(-) CD127(+) CD4(-) CD8(-) CRTH2(CD294)(+) CD161(+) cells in single cell suspensions through flow cytometry. ILC2 frequencies, measured as a percentage of CD45(+) cells, were compared across CRS phenotype, endotype, inflammatory CRS subtype and other disease characteristics including blood eosinophils, serum IgE, asthma status and nasal symptom score. 35 patients (40% female, age 48 17 years) including 13 with eosinophilic CRS (eCRS), 13 with non-eCRS and 9 controls were recruited. ILC2 frequencies were associated with the presence of nasal polyps (P = 0.002) as well as high tissue eosinophilia (P = 0.004) and eosinophil-dominant CRS (P = 0.001) (Mann-Whitney U). They were also associated with increased blood eosinophilia (P = 0.005). There were no significant associations found between ILC2s and serum total IgE and allergic disease. In the CRS with nasal polyps (CRSwNP) population, ILC2s were increased in patients with co-existing asthma (P = 0.03). ILC2s were also correlated with worsening nasal symptom score in CRS (P = 0.04).
Example output: 1
Example explanation: There is a line in the passage which say 'The aim of this study was...' which suggests that it is talking about a specific aim. Hence, the output should be 1 as this passage has a definite aim.
Q: The treatment of persistent epithelial defects (PED) with autologous serum eye drops is often combined with conventional medication such as artificial tears and topical antibiotics, but until now no report exists on the use of a bandage contact lens (BCL) in combination with autologous serum eye drops in the treatment of PEDs. We report six eyes (five patients) which were all treated with autologous serum eye drops in combination with an FDA group IV hydrogel contact lens.', 'Five patients aged 36-88 years, were suffering from six PEDs for 73.5+/-46.9 days due to rheumatoid sterile corneal ulcer (n=1), neurotrophic keratopathy (n=3) or partial limbal stem cell deficiency (n=1). All patients had been unsuccessfully treated with conventional therapy before. Three of them had already had an amniotic membrane transplantation and two had undergone a keratoplasty; however, the epithelial defect persisted or recurred. In all cases, an FDA group IV hydrogel contact lens (Biomedics 55, ocufilcon D, 55% water content) was fitted and serum eye drops applied 8 times a day.', 'The PED healed in five of six eyes after a treatment period of 14.2+/-8.9 days. In one eye the PED became smaller, but it took 90 days until the lesion healed completely. In three eyes (two patients) white deposits appeared on the surface of the BCL during the treatment after 12.3+/-5.1 days. Because no signs of inflammation were observed and since the epithelial defect improved, a new identical lens was applied and the medication continued unaltered. The surface of contaminated and non-contaminated BCLs were analyzed by scanning electron microscopy and SDS gel-electrophoresis. The scanning electron microscopic examination presented a coating of amorphous material with a wrinkled appearance and many corpuscular deposits. There was no indication of bacterial colonisation. The SDS gel-electrophoresis showed a small band at 65 kDa, probably albumin.
A:
0