Given the task definition, example input & output, solve the new input case.
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: 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).
Output: 1
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.

New input case for you: Minimally invasive retroperitoneoscopic surgery (MIS) for psoas abscess (PA) in patients with thoracolumbar tuberculosis is not well-illustrated and has not reached the status of being fully clinically assessed when we review the English literatures. The aim of this study is to introduce and investigate on efficacy and feasibility of MIS (retroperitoneoscopic technique) for PA in patients with thoracolumbar tuberculosis.', 'From January 2008 to 2013, 39 consecutive patients of the diagnosis of PA with thoracolumbar tuberculosis received the debridement of abscesses and cavity walls of abscesses by the retroperitoneoscopic technique (MIS) in combination with anti-tuberculosis chemotherapy. Medical records and follow-up data were retrospectively studied. CRP and ESR of every patient preoperatively and postoperatively were analyzed', 'Immediate relief in clinical symptoms and signs, and amelioration in imaging and laboratory examinations were obviously observed in all the patients. The follow-up had proceeded for 12-48 (mean 23) months. No complication was observed during the follow-up postoperatively.
Output:
1